CN113108494B

CN113108494B - Novel groove type solar power generation system automatic cleaning device

Info

Publication number: CN113108494B
Application number: CN202110405970.XA
Authority: CN
Inventors: 方晓敏
Original assignee: Quzhou College of Technology
Current assignee: Quzhou College of Technology
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2022-11-01
Anticipated expiration: 2041-04-15
Also published as: CN113108494A

Abstract

The invention discloses a novel automatic cleaning device of a trough type solar power generation system, which comprises a trough type reflecting plate, a cleaning device, a track, a control system, a pollutant recovery barrel, a water supply mechanism and a cleaning solution supply mechanism, wherein the track is arranged on two side surfaces of the lower part of the trough type reflecting plate; the upper part of the groove type reflecting plate is provided with a heat collecting cylinder, the upper end of the cleaning device is of an arc-shaped structure, and the upper end of the cleaning device is in contact with the heat collecting cylinder. According to the invention, through the improvement of the structure of the solar power generation system, the panel can be cleaned in a physical mode, and meanwhile, the cleaning is better realized by matching with a chemical cleaning agent, so that the automatic cleaning of the groove type solar power generation system is realized, the use and the installation are convenient, and the requirement of cleaning work is met.

Description

Novel groove type solar power generation system automatic cleaning device

Technical Field

The invention relates to the technical field of new energy equipment, in particular to the technical field of solar power generation, and specifically relates to a novel automatic cleaning device for a groove type solar power generation system.

Background

Solar energy is a renewable clean energy, and occupies an increasing market share in the power generation industry at home and abroad, and the current solar thermal power generation can be divided into the following types according to the solar energy collection mode: solar trough power generation and solar disc power generation. The groove type solar power generation is characterized in that a plurality of groove type paraboloid light-gathering heat collectors are arranged in series and parallel, the arc-shaped reflecting plates on the light-gathering heat collectors focus sunlight, working media in the vacuum heat collecting pipes are heated to generate high temperature, and then the high temperature and high pressure steam is generated by heating water through heat exchange equipment to drive a steam turbine generator set to generate power. Solar energy slot type heat collector condensing lens is that arc glass makes and forms because the reflecting plate is crooked arc structure, consequently, compares in dull and stereotyped solar photovoltaic power generation structure, and curved reflecting plate leads to the reflecting plate surface to pile up the foreign matter easily more, and the condensing lens mirror surface is unclean has the dust can seriously influence spotlight effect. The accumulation of the foreign matters remarkably reduces the specular reflectivity of the photo-thermal assembly, and further remarkably reduces the electric energy output capacity of the photo-thermal assembly. Especially stones, branches and leaves, bird droppings, sand grains, etc., can directly corrode and damage the mirror surface. So that the mirror surface is always kept clean. Since the surface area of the condenser lens is large, cleaning is difficult. And generally adopt the manual work to wash, the washing speed is slow, the water resource is wasted, especially the electricity generation region general area all is great, the interval is narrower, the manual operation degree of difficulty is big, the water pipe is arranged the difficulty, and the region that general solar energy resource is abundant also often is the region of lacking water simultaneously, if wash with a large amount of water, have great examination to the water resource supply.

Based on the above problems, many enterprises and scientific research institutes in the related field are looking for mechanized cleaning schemes, and it is hopeful that the requirements of saving water and cleaning efficiently without hindering photo-thermal power generation can be achieved, for example, chinese patent application No. 201410192060.8 provides a cleaning scheme, which can simultaneously satisfy the cleaning of arc-shaped trough plates and evacuated solar collector tubes, but the device adopted in the scheme can only adopt a structure that two arc-shaped plates are spliced into a solar reflector plate, and the gap in the middle of the solar reflector plate is used to realize the movement of the cleaning device, which is different from the structure of the currently common installation. Because in most embodiment cases at present, the frid that adopts generally all is a monoblock to avoid the focus deviation that concatenation installation regulation brought, can practice thrift the cost simultaneously, and can avoid rainwater etc. to fall from middle gap back corrosion damage below mechanical equipment and the frid that uses now need can follow the sunshine direction and rotate, adopt the concatenation installation will bring the difficulty for slewing mechanism's setting. Accordingly, an apparatus and method are sought that overcome the above-mentioned problems, and effectively solve the above-mentioned problems.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide a novel automatic cleaning device for a trough-type solar power generation system, which can clean the trough-type solar power generation system through physical and chemical ways by improving the structure, and has the advantages of simple structure, convenient use and installation, and capability of ensuring the efficient and stable completion of the cleaning operation.

The technical scheme of the invention is as follows:

a novel automatic cleaning device for a groove type solar power generation system is characterized by comprising a groove type reflecting plate, a cleaning device, a rail, a pollutant recovery barrel, a water supply mechanism and a cleaning solution supply mechanism, wherein the groove type reflecting plate is a whole arc-shaped plate body, the rail is arranged on two side surfaces of the lower portion of the groove type reflecting plate, a sliding system is arranged on the cleaning device and is connected to the rail through the sliding system, the initial position of the cleaning device is stopped at the outer side of one end of the groove type reflecting plate, the pollutant recovery barrel is arranged on the lower side of the other end of the groove type reflecting plate, the width of the left side and the width of the right side of the pollutant recovery barrel are larger than the horizontal width of the groove type reflecting plate, and the width of the front side and the width of the rear side of the pollutant recovery barrel are not less than 20cm; the sliding system enables the cleaning device to be kept on the upper side of the groove type reflecting plate and keeps a constant relative distance with the surface of the groove type reflecting plate, the lower part of the cleaning device is an arc-shaped plate and has the same radian with the groove type reflecting plate, and the arc length of the lower part of the cleaning device is larger than that of the groove type reflecting plate; the upper part of the groove type reflecting plate is provided with a heat collecting cylinder, the upper end of the cleaning device is of an arc-shaped structure, the upper end of the cleaning device is in contact with the heat collecting cylinder, but the contact surface is only limited to the lower half surface of the heat collecting cylinder;

the lower part and the upper part of the cleaning device are respectively provided with a water spraying hole and a cleaning liquid spraying hole, the cleaning device is provided with a water joint and a cleaning liquid joint which are connected with a water supply mechanism and a cleaning liquid supply mechanism, a water tank and a cleaning liquid tank are arranged in the joints, the water tank is respectively connected to the water spraying holes through connecting pipelines arranged on the water tank, the cleaning liquid tank is respectively connected to the cleaning liquid spraying holes through connecting pipelines arranged on the cleaning liquid tank, pumps are arranged at the inlet ends of the connecting pipelines of the water tank and the cleaning liquid tank, and an electric control valve is arranged on the connecting pipelines;

the cleaning device comprises an upper cleaner and a lower cleaner, the lower part of the lower cleaner is an arc surface, and the upper part of the lower cleaner is a plane; the upper cleaner is arranged at the front end of the lower cleaner and extends upwards, the upper cleaner is used for cleaning the heat collecting cylinder, the lower cleaner is used for cleaning the groove type reflecting plate, and a fan-shaped front push plate is further arranged at the front end of the lower side of the upper cleaner.

Furthermore, the front surface of the upper cleaner is of a trapezoidal structure with a narrow upper part and a wide lower part, the side surface of the upper cleaner is of a right-angle trapezoidal structure with a plane upper part, and the interior of the upper cleaner is of a hollow structure; the top of the upper cleaner is of an arc-shaped plate structure, a front scraping plate is arranged at the front end of the arc-shaped plate, a water spraying hole and an upper liquid spraying hole are formed in the rear side of the front scraping plate, an upper sewage inlet is formed in the rear end of the liquid spraying hole and is of a square hole structure, a pipe body penetrating through the whole upper cleaner and the whole lower cleaner is connected below the upper sewage inlet, the other end of the pipe body is an upper sewage outlet, and cameras are arranged above the upper sewage outlet and on two adjacent surfaces of the upper sewage outlet respectively and used for observing the condition of pollutants on the surface of the groove type reflecting plate; a rear water baffle is arranged at the rear side of the upper sewage inlet;

two sides of the top of the upper cleaner are provided with side shielding plates, the lower parts of the side shielding plates are provided with sewage inlets and are connected to a pipe body connected with the upper sewage inlet;

and a rear scraper parallel to the front water baffle is arranged in the middle of the upper sewage inlet.

Furthermore, the upper water spray holes are provided with two rows and used as the upper front water spray holes and the upper rear water spray holes, one row of upper liquid spray holes are arranged between the two rows of upper water spray holes, the upper front water spray holes and the upper rear water spray holes are connected to the water tank through connecting pipelines, and the upper liquid spray holes are connected to the cleaning liquid tank through connecting pipelines.

Furthermore, the lower cleaner is of a hollow structure, a water tank and a cleaning liquid tank are horizontally arranged in the lower cleaner, the water tank is arranged at the upper part of the cleaning liquid tank, and sliding systems are arranged on two sides of an arc-shaped plate at the lower part of the water tank; at least one row of lower water spraying holes and at least one row of cleaning heads are arranged on the arc-shaped plate; a water pusher is arranged at the rear side of the lower water spraying hole and the cleaning head, the water pusher is a solid plate with a larger width, a soft material is arranged at the bottom of the water pusher, and the height of the bottom of the water pusher is higher than that of the bottom of the cleaning head; a dryer is arranged behind the water pusher, a plurality of fans and heating wires are arranged in the dryer, and a fence is arranged at the bottom of the dryer; and a lower baffle is arranged at the rear side of the dryer and is made of soft water-absorbing material.

Furthermore, sliding systems are arranged on two sides of an arc-shaped plate at the lower part of the lower cleaner, and the specific structure of the cleaning device is that the sliding systems are respectively provided with a moving groove at the front end and the rear end of the two sides of the arc-shaped plate, the sliding systems are arranged in the moving grooves, and the lateral movement of the whole cleaning device can be adjusted through the rotation of the moving grooves and the sliding systems.

Furthermore, the lower water spraying holes are provided with two rows, the cleaning heads are provided with two rows, the two rows of cleaning heads are arranged in a staggered mode, and the two rows of water spraying holes are respectively formed in the front side and the rear side of the cleaning heads.

Furthermore, a plurality of circular holes are formed in the arc-shaped plate at the lower part of the lower cleaner, a cleaning head is arranged in each circular hole, the cleaning head comprises a circular cover plate, a cleaning solution connecting block is arranged above the cover plate and used for contacting and connecting a pipeline, a circular head liquid storage device is fixed below the cover plate, the outer diameter of the cover plate is larger than that of the head liquid storage device, a large spring with the diameter larger than that of the head liquid storage device is connected below the cover plate and used as a supporting spring, and the supporting spring is connected to the inner side of the arc-shaped plate of the lower cleaner to enable the whole cleaning head to move up and down within a certain range; the head liquid storage device is a hollow cavity, the upper part of the head liquid storage device is communicated with a connecting pipeline, a circular plate with holes is arranged at the lower side of the middle part of the head liquid storage device, the side surface of the circular plate with holes is hermetically connected with the head liquid storage device, an upward-opened check valve is arranged at the middle part of a circular plate with holes, a plurality of small springs are arranged below the circular plate with holes and used as block springs, the lower ends of the block springs are connected with a circular cover type block fixing plate, a decontamination block is bonded in the block fixing plate, a plurality of small holes are arranged on the circular plate of the block fixing plate and used as a seepage port of cleaning solution, and the decontamination block is made of permeable material;

in the non-working state, the bottom height of the cleaning head is lower than the surface height of the groove type reflecting plate.

Furthermore, water supply mechanism sets up in slot type reflecting plate below, supplies cleaning solution mechanism to set up in water supply mechanism side or top, and is equipped with the L type pipeline that upwards extends respectively on water supply mechanism and the cleaning solution mechanism of supplying, regards as delivery pipe and the clean liquid pipe of supplying respectively, and the end of delivery pipe and clean liquid pipe of supplying all is equipped with one section and expands wide section, is equipped with one deck seal gasket at the front end of widening the section.

Further, the water swivel sets up in the upside that the cleaning solution connects, the end butt joint of water swivel and delivery pipe, the cleaning solution connects and supplies the terminal butt joint of cleaning fluid pipe, the structure that water swivel and cleaning solution connect is the same, be the protruding circular boss structure of outside from cleaner down, and be equipped with a bell mouth at the middle part, be equipped with one section drum section at the bell mouth rear side, the internal diameter of drum section is greater than the tip external diameter of delivery pipe and supply cleaning fluid pipe, the major diameter of bell mouth is less than the external diameter of widening the section, and be equipped with two check doors of inside division in the drum section, two check doors are the inclined plane structure at the contact surface.

Furthermore, a door sealing plate extending to the rear side of the other one-way door is arranged on the rear side of the one-way door on the inner side; the door sealing plate is of a plastic structure, and a layer of rubber pad is arranged on the door sealing plate and a door contact surface on the rear side of the other one-way door.

The invention has the advantages that:

1. the invention designs an integrated structure, can simultaneously remove pollutants on the heat collecting cylinder and the groove type reflecting plate, completely cover the whole working surface, ensure the cleanness of the groove type solar power generation system, and recycle the cleaned sewage to avoid the pollution to the environment;

2. the invention adopts the mode of alternately flushing cleaning solution and water, ensures that pollutants can be cleaned, and is convenient for subsequent suction and cleaning; the structure is improved, so that the cleaning solution and water can conveniently enter the cleaning solution tank and the water tank and are convenient to use when the cleaning solution is sprayed and sprayed subsequently;

3. the circular cleaning head is adopted for unidirectional cleaning, after the cleaning side is damaged or deformed, the cleaning device can be disassembled and the cleaning head can be rotated for a certain angle, and the unused side is opposite to the front, so that the cleaning head can be used for the whole circumference, and waste is avoided;

4. the cleaning head with the spring structure is adopted, so that the cleaning liquid is not required to be conveyed by electric control operation during use, and the cleaning head can be completely opened and closed by depending on a self mechanical structure, so that excessive micro control and power mechanisms are avoided, and the maintenance difficulty and the processing cost are reduced; similarly, the water joint and the cleaning liquid joint also adopt a one-way door mode, and the injection can be realized under the condition that a micro switch is not arranged.

Drawings

FIG. 1 is a schematic diagram of the present invention;

FIG. 2 is a front view of the trough solar power system with the front push plate removed;

FIG. 3 is a front view of the trough solar power system with the front push plate, the tube support, the tube connection frame, and the heat collection tube removed;

FIG. 4 is a front view of the cleaning device;

FIG. 5 is a front view of the cleaning device (with the front push plate removed);

FIG. 6 is a left side view of FIG. 3;

FIG. 7 is a bottom plan view of FIG. 3;

FIG. 8 is a cross-sectional view of the cleaning head;

FIG. 9 is a perspective view of the upper cleaner;

FIG. 10 is a schematic view of the structure of the water supply mechanism and the cleaning solution supply mechanism;

FIG. 11 is a cross-sectional view of the water inlet of the cleaning device;

FIG. 12 is a water and cleaning fluid supply route diagram;

fig. 13 is a detailed view of a track area.

In the figure:

1 groove type reflecting plate, 2 heat collecting cylinders, 3 cylinder supports, 4 cylinder connecting frames, 5 cleaning devices, 6 tracks, 7 pollutant recycling barrels, 8 reflecting plate main supports, 9 reflecting plate rotating frames, 10 bases, 11 adjusting motors, 12 water supply mechanisms, 13 cleaning liquid supply mechanisms,

A lower 51 cleaner, an upper 52 cleaner, a front 53 push plate,

5101 traveling support frame, 5102 traveling wheel, 5103 cleaning head, 5104 traveling motor, 5105 lower water spraying hole, 5106 sliding system fixing part, 5107 water pusher 5108 drier, 5109 lower baffle, 5110 water joint, 5111 cleaning liquid joint, 5112 water tank, 5113 cleaning liquid tank, 5114 one-way door, 5115 door sealing plate, and a water-cooling device,

51031 decontamination block, 51032 fixing plates, 51033 springs, 51034 injection pipes, 51035 check valves, 51036 supporting springs, 51037 head reservoir, 51038 cover plate, 51039 cleaning liquid connecting block,

510321 cleaning liquid seepage port,

52 an upper cleaner,

5201 camera, 5202 upper sewage outlet, 5203 front scraper, 5204 upper front water jet hole, 5205 upper liquid jet hole, 5206 upper rear water jet hole, 5207 rear scraper, 5208 upper sewage inlet, 5209 rear splash plate, 5210 side shield, and cover plate,

1201 water supply pipe,

1301 supply cleaning liquid pipe.

Detailed Description

The present invention is further described with reference to the following embodiments, and it should be noted that, in this document, words such as "upper", "lower", etc., are used merely for convenience of description of the drawings, and do not limit the direction in actual use, and do not necessarily require or imply any actual relationship or order between these entities or operations. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in fig. 1-5, 10, and 13, a novel automatic cleaning device for a trough-type solar power generation system comprises a trough-type reflective plate 1, a cleaning device 5, a rail 6, a water supply mechanism 12, a cleaning liquid supply mechanism 13, a control system, and a pollutant recovery tank 7, wherein the trough-type reflective plate 1 is a one-piece plate, the rail 6 is installed on two sides of the lower part of the trough-type reflective plate 1, the cleaning device 5 is provided with a sliding system, and is connected to the rail 6 through the sliding system, the sliding system can adopt a traveling support frame 5101 with a bent rod structure, so that the lower side of the cleaning device 5 can extend to the lower side of the trough-type reflective plate 1, the traveling support frame 1 on the lower side of the trough-type reflective plate 1 is provided with a traveling motor 5104 and a traveling wheel 5102, the traveling wheel 5102 is clamped into the rail 6 to advance or retreat along the rail 6, the sliding system keeps the cleaning device 5 outside one end of the upper side of the trough-type reflective plate 1, and keeps a constant relative distance from the plate surface 5101 in an initial position, and the lower part of the cleaning device 5 is an arc-shaped plate and is the same as that the length of the trough-type reflective plate 1 is greater than the length of the trough-type reflective plate 1; a pollutant recycling bin 7 is arranged below the other end of the groove type reflecting plate 1, and the width of the pollutant recycling bin 7 is larger than that of the groove type reflecting plate 1; a thermal-arrest section of thick bamboo 2 is installed on 1 upper portion of slot type reflecting plate, and a thermal-arrest section of thick bamboo 2 is hollow tube structure, and a section of thick bamboo support 3 is equipped with in its both sides, and a section of thick bamboo support 3 extends to both sides below and is connected to same root section of thick bamboo link 4, and a section of thick bamboo link 4 is outside and keep a determining deviation in 1 both sides of slot type reflecting plate, and a section of thick bamboo link 4 bottom is fixed at 1 downside of slot type reflecting plate, is equipped with reflecting plate rotating frame 9 at 1 downside of slot type reflecting plate, be connected with reflecting plate main support 8 through the pivot below reflecting plate rotating frame 9, reflecting plate main support 8 bottom is connected with lifter 7 to be equipped with base 10 in lifter 7 bottom, install adjustment motor 11 on base 10, adjustment motor 11 drives reflecting plate rotating frame 9 through modes such as gear drive or chain drive and rotates.

The upper end of the cleaning device 5 is of an arc-shaped structure, the upper end of the cleaning device 5 is in contact with the heat collecting cylinder 2, but the contact surface is only limited to the lower half surface of the heat collecting cylinder 2; cleaning device 5's lower part and upper portion all are equipped with the hole for water spraying and spout the cleaning solution hole, water supply mechanism 12 and confession cleaning solution mechanism 13 place on base 10, cleaning device 5 is last to be equipped with water swivel 5110 and the cleaning solution joint 5111 of being connected with water supply mechanism 12 and confession cleaning solution mechanism 13, and be equipped with water tank 5112 and cleaning solution case 5113 in the joint, be connected to the hole for water spraying respectively through setting up the connecting line on water tank 5112, be connected to respectively spouting the cleaning solution hole through setting up the connecting line on cleaning solution case 5113, and all be equipped with the pump on the connecting line inlet end of water tank 5112 and cleaning solution case 5113, be equipped with the automatically controlled valve on the connecting line, through pump and automatically controlled valve, control hole for water spraying and spout cleaning solution hole, make it can spout water and cleaning solution, realize clear effect, the viscosity of cleaning solution is less than 1.2mm²S is inThe preparation is completed before use. Pumps are also provided in the water supply mechanism 12 and the cleaning liquid supply mechanism 13. The liquid of the water supply means 12 and the liquid supply means 13 is supplied in advance with the amount of liquid available for at least ten times of heavy cleaning.

As shown in fig. 3-7, 9 and 12, the cleaning device 5 comprises an upper cleaner 52, a lower cleaner 51 and a front push plate 53. The lower part of the lower cleaner 51 is an arc surface, the upper part of the lower cleaner is a straight line, the upper cleaner 52 is arranged at the front end of the lower cleaner 51 and extends upwards, the upper cleaner 52 is used for cleaning the heat collecting cylinder 2, the lower cleaner 51 is used for cleaning the trough type reflecting plate 1, the front surface of the upper cleaner 52 is of a trapezoidal structure with a narrow upper part and a wide lower part, the side surface of the upper cleaner 52 is of a planar right-angled trapezoidal structure, as shown in fig. 5, the inside of the upper cleaner is of a hollow structure, a fan-shaped front push plate 53 is arranged at the front end of the lower side of the upper cleaner 52, two ends of the front push plate 53 are fixed on the upper cleaner 52 through two metal rods in a shape like a Chinese character 'ba', a fan-shaped panel is connected below the two metal rods, and the panel is composed of hard brushes, so that most of large-sized sundries in front, such as stones and leaves, can be pushed forward until finally dropped into the pollutant collecting cylinder 7; the top of the said upper cleaner 52 is a structure of arcuate plate, there are front scrapers 5203 in the front end of the arcuate plate, the front scraper 5203 is the hard plastics, there are 1mm interval between heat collecting cylinder 3 and the top of the front scraper 5203, there are water jet holes and upper liquid spray holes 5205 on the back side of the front scraper 5203, there are upper sewage inlets 5208 in the back end of the liquid spray hole, the said upper sewage inlet 5208 is the square hole structure, connect with the tube body that runs through the whole upper and lower of the upper cleaner 52 below the upper sewage inlet 5208, another end of tube body is an upper sewage outlet 5202, there are a camera 5201 above the upper sewage outlet 5202 and adjacent two sides separately, is used for observing the pollutant situation on the surface of the trough reflecting plate 1, and feedback the data to the control system, let the control system adjust the cleaning procedure according to the pollution situation, including water injection amount, what water jet holes, etc.; a rear water baffle 5209 is arranged at the rear side of the upper sewage inlet 5208, the rear water baffle 5209 is made of rubber, a rear scraping plate 5207 parallel to the front water baffle is arranged at the middle part of the upper sewage inlet 5208, side shielding plates 5210 are arranged at two sides of the upper part of the upper cleaner 52, the structure of the side shielding plates 5210 is triangular funnel-shaped, the lower part of the funnel of the side shielding plates 5210 is provided with a sewage inlet, and the side shielding plates are connected to a pipe body connected with the upper sewage inlet 5202. The upper water jetting holes are arranged in two rows to serve as an upper front water jetting hole 5204 and an upper rear water jetting hole 5206, a row of upper liquid jetting holes 5205 is arranged between the two rows of upper water jetting holes, the upper front water jetting hole 5204 and the upper rear water jetting hole 5206 are both connected to the water tank 5112 through connecting pipelines, and the upper liquid jetting holes 5205 are connected to the cleaning liquid tank 5113 through connecting pipelines.

The lower cleaner 51 is of a hollow structure, a water tank 5112 and a cleaning liquid tank 5113 are installed in the lower cleaner 51 in a direction parallel to the upper part of the lower cleaner 51, the volume ratio of the water tank 5112 to the cleaning liquid tank 5113 is preferably five to one, the water tank 5112 is arranged at the upper part of the cleaning liquid tank 5113, and sliding system fixing parts 5106 for fixing a sliding system advancing support frame 5101 are arranged on two sides of an arc-shaped plate at the lower part of the water tank 5112; two rows of lower water spraying holes 5105 and two rows of cleaning heads 5103 are arranged on the arc-shaped plate, the two rows of cleaning heads 5103 are arranged in a staggered mode, and the two rows of water spraying holes are respectively arranged on the front side and the rear side of the cleaning heads 5103; a water pusher 5107 is arranged at the rear sides of the lower water spraying hole 5105 and the cleaning head 5103, the water pusher 5107 is a rubber block with a larger width, a soft water absorbing material such as cotton cloth is arranged at the bottom of the water pusher 5107, sewage can be directly pushed forwards into the pollutant recycling barrel 7, a little sewage is pushed flat on the surface, and the bottom of the water pusher 5107 is higher than the bottom of the cleaning head 5103; a dryer 5108 is arranged behind the water pusher 5107, a plurality of fans and heating wires are arranged in the dryer 5108, hot air can be blown out to dry accumulated water on the trough type reflecting plate 1, and a fence is arranged at the bottom of the dryer 5108; a lower baffle 5109 is provided at the rear side of the dryer 5108, and the lower baffle 5109 is made of a soft water-absorbing material, such as sponge, and can dry the water finally remaining on the trough reflector 1.

The two sides of the arc-shaped plate at the lower part of the lower cleaner 51 are provided with sliding systems, the sliding systems are respectively provided with a moving groove 5106 at the front end and the rear end of the two sides of the arc-shaped plate, the upper end of a travelling support frame 5101 of the sliding systems is installed in the moving groove 5106, two rows of racks are arranged on the inner side of the moving groove 5106, a rotating gear and a gear motor are arranged at the top of the travelling support frame 5101, a stop block is arranged on the outer side of the arc-shaped plate, close to the lower cleaner, of the travelling support frame 5101, the width of the stop block is larger than that of the moving groove, limiting is achieved, and the gear motor drives the gear to move on the racks and is used for adjusting the lateral movement of the whole cleaning device 5.

The upper panel of the upper cleaner 51 and the front panel of the lower cleaner 52 are detachable structures, which are convenient for installation and detachment of internal parts, and the detachable structures can specifically adopt a slot type or lock catch type structure, so as to reduce the extra weight increased by the arrangement of the connecting mechanism and have no influence on structural strength.

As shown in fig. 8, the structure and installation of cleaning head 5103 are specifically as follows: a plurality of circular holes are formed in the arc-shaped plate at the lower part of the lower cleaner 51, a cleaning head 5103 is arranged in each circular hole, the cleaning head 5103 comprises a circular cover plate 51038, a cleaning solution connecting block 51039 is arranged above the cover plate 51038 and used for being in contact with a connecting pipeline, a circular head liquid reservoir 51037 is fixed below the cover plate 51038, the outer diameter of the cover plate 51038 is larger than that of the head liquid reservoir 51037, a large spring with the diameter larger than that of the head liquid reservoir 51037 is connected below the cover plate 51038 and used as a supporting spring 51036, and the supporting spring 51036 is connected to the inner side of the arc-shaped plate of the lower cleaner 51 to enable the whole cleaning head 5103 to move up and down in a certain range; the head reservoir 51037 is a hollow cavity, the upper part of the head reservoir 51037 is communicated with a connecting pipeline, a circular plate with holes is arranged on the lower side of the middle part of the head reservoir 51037, the side surface of the circular plate with holes is hermetically connected with the head reservoir 51037, an upward one-way valve is arranged in the middle of the circular plate with holes, a plurality of small springs are arranged below the circular plate with holes and are used as block springs 51033, the lower end of each block spring 51033 is connected with a circular cover type block fixing plate 51032, a decontamination block 51031 is bonded in the block fixing plate 51032, a plurality of small holes are arranged on the circular plate of the block fixing plate 51032 and are used as a cleaning solution seepage port 510321, and the decontamination block 51031 is made of permeable materials such as steel wire rings, nylon wire rings, non-woven fabric balls and the like; the spring strength of the block spring 51033 is smaller than that of the support spring 51036, when the decontamination block 51031 is stressed, the block spring 51033 is driven to compress firstly, and when the block spring 51033 is compressed to the extreme, the support spring 51036 is driven to stretch. In the rest state, the bottom of cleaning head 5103 is lower than the surface level of the trough plate 1 to ensure that the bottom of cleaning head 5103 can contact the trough plate 1 and be pushed upward.

The water supply mechanism 12 is disposed below the trough-type reflection plate 1, the cleaning solution supply mechanism 13 is disposed on the side or above the water supply mechanism 12, and L-shaped pipelines extending upward are disposed on the water supply mechanism 12 and the cleaning solution supply mechanism 13 respectively as a water supply pipe 1201 and a cleaning solution supply pipe 1301, the ends of the water supply pipe 1201 and the cleaning solution supply pipe 1301 are both provided with a widening section, and a sealing gasket is disposed at the front end of the widening section.

The cleaning solution pipe 5111 is provided with a water joint 5110, the water joint 5110 is in butt joint with the tail end of the water supply pipe 1201, the cleaning solution joint 5111 is in butt joint with the tail end of the cleaning solution supply pipe 1301, the water joint 5110 and the cleaning solution joint 5111 are of the same structure and are both of circular boss structures protruding outwards from the lower cleaner 51, a tapered hole is arranged in the middle of the cleaning solution joint, the tapered hole is used for guiding the tail ends of the water supply pipe 1201 and the cleaning solution supply pipe 1301 to be conveniently in butt joint in place, a section of cylindrical section is arranged on the rear side of the tapered hole, the inner diameter of the cylindrical section is larger than the outer diameters of the end parts of the water supply pipe 1201 and the cleaning solution supply pipe 1301, the major diameter of the tapered hole is smaller than the outer diameter of the widening section, two inward-opening one-way doors 5114 are arranged on the cylindrical section, the two one-way doors 5114 are of an inclined plane structure on the contact surface, a door sealing plate 5115 extending to the rear side of the other one-way door 5114 is arranged on the inner side, the door 5115 is of the plastic structure, and a layer of a one-way door 5114 is matched with the other one-way door 5114, so that the cleaning solution joint 5112 can effectively prevent the cleaning solution tank from overflowing.

A novel automatic cleaning method for a groove type solar power generation system comprises the following steps:

step 1, when cleaning is needed, firstly, the trough type reflecting plate 1 is kept to be opened towards the right upper side, according to a program set by a control system, the cleaning device 5 is at an initial position, at the moment, the water supply mechanism 12 and the cleaning liquid supply mechanism 13 are inserted into the water joint 5110 and the cleaning liquid joint 5111 through the front ends of the water supply pipe 1201 and the cleaning liquid supply pipe 1301, the end widening sections of the water supply pipe 1201 and the cleaning liquid supply pipe 1301 are abutted, sealing is kept between the water supply pipe 1201 and the cleaning liquid supply pipe 1301 and the water joint 5110 and between the cleaning liquid joint 5111 through a sealing gasket, at the moment, a pump in the water supply mechanism 12 and the cleaning liquid supply mechanism 13 is started to supplement the water tank 5112 and the cleaning liquid tank 5113, so that the water and the cleaning liquid are kept exceeding the liquid level height of the water joint 5110 and the cleaning liquid joint 5111 to a full liquid level range, then the water and the cleaning liquid are stopped supplementing, and a sliding system is controlled, the whole cleaning device 5 is moved forwards until the water joint 5110 and the cleaning liquid joint 5111 leave the water supply pipe 1201 and the cleaning liquid joint 5111, and the unidirectional door 5114 of the water joint 5110 and the cleaning liquid joint 5111 are automatically closed;

step 2, filling each head reservoir 51037 with a proper amount of cleaning liquid by a pump in the cleaning liquid tank 5113, keeping the stock of the cleaning liquid in the head reservoir 51037 not to exceed the height of the cover plate 51038, and closing a valve of a corresponding connecting pipeline after filling is completed to avoid that the cleaning liquid continuously flows into the head reservoir 51037 due to gravity;

step 3, according to a set cleaning cycle, or under a specific condition, the control system makes the cleaning device 5 advance along the track 6, at this time, the upper cleaner 52 of the cleaning device 5 contacts the heat collecting cylinder 2 first, and the front scraper 5203 scrapes and rubs off solid pollutants with larger size on the lower side of the heat collecting cylinder 2 first, then the upper front water spraying hole 5204 sprays water to the lower part of the heat collecting cylinder 2, the upper liquid spraying hole 5205 sprays cleaning liquid to the lower part of the heat collecting cylinder 2, then the upper rear water spraying hole 5206 sprays water again to the lower part of the heat collecting cylinder 2 to wash the area where the cleaning liquid is located, a small part of the falling sewage flows downwards from the two sides of the upper cleaner 52 and is returned to the pipeline by the side shutter 5210, and most of the sewage is scraped by the rear scraper 5207 and enters the upper sewage inlet 5208 and then flows out from the lower sewage inlet together with the liquid returned from the side shutter 5210 to the groove type reflecting plate 1; meanwhile, the front push plate 53 pushes the dust, stones, leaves and other impurities on the trough type reflecting plate 1 forwards together;

then the lower cleaner 51 of the cleaning device 5 enters from one end of the trough-type reflection plate 1, after the cleaning device 5 moves to the trough-type reflection plate 1, the pollution condition on the trough-type reflection plate 1 is judged through the camera 5201, then the trough-type reflection plate 1 is washed by spraying water through the first row of water spraying holes, then, after the cleaning head 5103 contacts the trough-type reflection plate 1, because the bottom of the cleaning head 5103 is lower than the trough-type reflection plate 1, at this time, the decontamination block 51031 of the cleaning head 5103 is pushed by the trough-type reflection plate 1 to cause the decontamination block 51031 to compress and move upwards, the block spring 51033 is driven to compress, and the block fixing plate 32 is driven to move upwards (the compression ratio of the decontamination block 51031 is lower, it can be ensured that the block fixing plate 51032 cannot be pressed completely), the block injection tube 51034 pushes the block check valve 51035 open, at this time, the cleaning liquid in the head reservoir 51037 flows downward, enters and soaks the decontamination block 51031 through the cleaning liquid seepage port 510321, the surface of the trough type reflection plate 1 is smeared and wiped through the decontamination block 51031 to remove part of stubborn stains, the residual cleaning liquid is diluted through the water spray holes of the back row, the residual sewage is pushed and leveled through the water pusher 5107, part of the water stains which are not pushed away by the water pusher 5107 are dried through the dryer 5108, the lower baffle 5109 plays a role in limiting the direction of the air flow, and part of the residual light dust is flushed to two sides by the air flow of the dryer 5108 and blown out from two sides of the trough type reflection plate 1, so that the cleaning is completed;

step 4, after cleaning is completed, the cleaning solution in the head reservoir 51037 is ensured to be used up, all parts soaked with water and cleaning solution are naturally dried, and the cleaning device 5 is returned to the starting position through the sliding rail, so that the panel is prevented from being wetted again in the returning process and is ready for the next use.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The novel automatic cleaning device for the groove type solar power generation system is characterized by comprising a groove type reflecting plate (1), a cleaning device (5), a track (6), a pollutant recovery barrel (7), a water supply mechanism (12) and a cleaning solution supply mechanism (13), wherein the groove type reflecting plate (1) is a whole arc-shaped plate body, the track (6) is arranged on two side surfaces of the lower portion of the groove type reflecting plate (1), the cleaning device (5) is provided with a sliding system and is connected to the track (6) through the sliding system, the initial position of the cleaning device (5) is stopped at the outer side of one end of the groove type reflecting plate (1), the pollutant recovery barrel (7) is arranged on the lower side of the other end of the groove type reflecting plate (1), the widths of the left side and the right side of the pollutant recovery barrel (7) are larger than the horizontal width of the groove type reflecting plate, and the widths of the front side and the rear side are not less than 20cm; the sliding system enables the cleaning device (5) to be kept at the upper side of the groove type reflecting plate (1) and keep a constant relative distance with the plate surface of the groove type reflecting plate (1), the lower part of the cleaning device (5) is an arc-shaped plate and has the same radian with the groove type reflecting plate (1), and the arc length of the lower part of the cleaning device (5) is larger than that of the groove type reflecting plate (1); the upper part of the groove type reflecting plate (1) is provided with a heat collecting cylinder (2), the upper end of the cleaning device (5) is of an arc-shaped structure, and the upper end of the cleaning device (5) is kept in contact with the heat collecting cylinder (2);

the lower part and the upper part of the cleaning device (5) are respectively provided with a water spraying hole and a cleaning liquid spraying hole, the cleaning device (5) is provided with a water joint (5110) and a cleaning liquid joint (5111) which are connected with a water supply mechanism (12) and a cleaning liquid supply mechanism (13), a water tank (5112) and a cleaning liquid tank (5113) are arranged in the joints, the water tank (5112) is provided with a connecting pipeline which is respectively connected to the water spraying hole, the cleaning liquid tank (5113) is provided with a connecting pipeline which is respectively connected to the cleaning liquid spraying hole, the inlet ends of the connecting pipelines of the water tank (5112) and the cleaning liquid tank (5113) are respectively provided with a pump, and the connecting pipeline is provided with an electric control valve;

the cleaning device (5) comprises an upper cleaner (52) and a lower cleaner (51), the lower part of the lower cleaner (51) is an arc surface, the upper part of the lower cleaner is a straight line, the upper cleaner (52) is arranged at the front end of the lower cleaner (51) and extends upwards, the upper cleaner (52) is used for cleaning the heat collecting barrel (2), the lower cleaner (51) is used for cleaning the groove type reflecting plate (1), and the front end of the lower side of the upper cleaner is also provided with a fan-shaped front push plate (53);

the front surface of the upper cleaner (52) is of a trapezoidal structure with a narrow upper part and a wide lower part, the side surface is of a right-angled trapezoidal structure with a plane upper part, and the interior is of a hollow structure; the top of the upper cleaner (52) is of an arc-shaped plate structure, a front scraping plate (5203) is arranged at the front end of the arc-shaped plate, a water spraying hole and a cleaning liquid spraying hole are arranged on the rear side of the front scraping plate (5203), the cleaning liquid spraying hole is used as an upper liquid spraying hole (5205), an upper sewage inlet (5208) is arranged at the rear end of the upper liquid spraying hole (5205), the upper sewage inlet (5208) is of a square hole structure, a pipe body penetrating through the whole upper cleaner (52) up and down is connected below the upper sewage inlet (5208), the other end of the pipe body is an upper sewage outlet (5202), and cameras (5201) are respectively arranged above the upper sewage outlet (5202) and on the adjacent two sides and used for observing the condition of pollutants on the surface of the groove type reflecting plate (1); a rear water baffle plate (5209) is arranged at the rear side of the upper sewage inlet (5208);

side shielding plates (5210) are arranged at two sides of the top of the upper cleaner (52), a sewage inlet is arranged at the lower part of each side shielding plate (5210), and the side shielding plates are connected to a pipe body connected with the upper sewage inlet (5208);

a rear scraper (5207) parallel to the front water baffle is arranged in the middle of the upper sewage inlet (5208);

the upper water spray holes are provided with two rows of upper front water spray holes (5204) and upper rear water spray holes (5206), a row of upper liquid spray holes (5205) are arranged between the two rows of upper water spray holes, the upper front water spray holes (5204) and the upper rear water spray holes (5206) are both connected to the water tank (5112) through connecting pipelines, and the upper liquid spray holes (5205) are connected to the cleaning liquid tank (5113) through connecting pipelines;

the lower cleaner (51) is of a hollow structure, a water tank (5112) and a cleaning liquid tank (5113) are horizontally arranged in the lower cleaner (51), the water tank (5112) is arranged at the upper part of the cleaning liquid tank (5113), and sliding systems are arranged on two sides of an arc-shaped plate at the lower part of the water tank (5112); at least one row of lower water spraying holes (5105) and at least one row of cleaning liquid spraying holes are arranged on the arc-shaped plate, and the cleaning liquid spraying holes are used as cleaning heads (5103); a water pusher (5107) is arranged on the rear sides of the lower water spraying hole (5105) and the cleaning head (5103), the water pusher (5107) is a solid plate with a larger width, a soft material is arranged at the bottom of the water pusher (5107), and the bottom of the water pusher (5107) is higher than the bottom of the cleaning head (5103); a dryer (5108) is arranged behind the water pusher (5107), a plurality of fans and heating wires are arranged in the dryer (5108), and a fence is arranged at the bottom of the dryer (5108); a lower baffle plate (5109) is arranged on the rear side of the dryer (5108), and the lower baffle plate (5109) is made of soft water-absorbing materials;

the two sides of the arc-shaped plate at the lower part of the lower cleaner (51) are provided with sliding systems, the specific structure of the cleaning device is that the sliding systems are respectively provided with a moving groove (5106) at the front end and the rear end of the two sides of the arc-shaped plate, the sliding systems are arranged in the moving grooves (5106), and the lateral movement of the whole cleaning device (5) can be adjusted through the rotation of the moving grooves (5106) and the sliding systems;

the lower water spraying holes (5105) are provided with two rows, the cleaning heads (5103) are provided with two rows, the two rows of cleaning heads (5103) are arranged in a staggered manner, and the two rows of water spraying holes are respectively arranged on the front side and the rear side of the cleaning heads (5103);

the cleaning device comprises a lower cleaner (51), wherein a plurality of circular holes are formed in an arc-shaped plate at the lower part of the lower cleaner (51), a cleaning head (5103) is arranged in each circular hole, the cleaning head (5103) comprises a circular cover plate (51038), a cleaning solution connecting block (51039) is arranged above the cover plate (51038), the cleaning solution connecting block (51039) is used for being in contact with a connecting pipeline, a circular head liquid storage device (51037) is fixed below the cover plate (51038), the outer diameter of the cover plate (51038) is larger than that of the head liquid storage device (51037), a large spring with the diameter larger than that of the head liquid storage device (51037) is connected below the cover plate (51038) and serves as a supporting spring (51036), the supporting spring (51036) is connected to the inner side of the arc-shaped plate of the lower cleaner (51), and the whole cleaning head (5103) can move up and down in a certain range; the head liquid storage device (51037) is a hollow cavity, the upper part of the head liquid storage device (51037) is communicated with a connecting pipeline, a circular plate with holes is arranged on the lower side of the middle part of the head liquid storage device (51037), the side surface of the circular plate with holes is connected with the head liquid storage device (51037) in a sealing manner, an upward-opening one-way valve is arranged in the middle of the circular plate with holes, a plurality of small springs are arranged below the circular plate with holes and serve as block springs (51033), the lower end of each block spring (51033) is connected with a circular cover type block fixing plate (51032), a decontamination block (51031) is bonded in each block fixing plate (51032), a plurality of small holes are formed in the circular plate of each block fixing plate (51032) and serve as cleaning liquid seepage ports (510321), and each decontamination block (51031) is made of a water permeable material;

in the non-working state, the bottom height of the cleaning head (5103) is lower than the surface height of the groove type reflecting plate (1).

2. The automatic cleaning device for the trough-type solar power generation system according to claim 1, wherein the water supply mechanism (12) is disposed below the trough-type reflection plate (1), the cleaning solution supply mechanism (13) is disposed on the side surface or above the water supply mechanism (12), and the water supply mechanism (12) and the cleaning solution supply mechanism (13) are respectively provided with an upward extending L-shaped pipeline as a water supply pipe (1201) and a cleaning solution supply pipe (1301), the ends of the water supply pipe (1201) and the cleaning solution supply pipe (1301) are respectively provided with a widening section, and a sealing gasket is disposed at the front end of the widening section.

3. The automatic cleaning device for the novel trough type solar power generation system according to claim 2, wherein the water joint (5110) is arranged at the upper side of the cleaning liquid joint (5111), the water joint (5110) is in butt joint with the tail end of the water supply pipe (1201), the cleaning liquid joint (5111) is in butt joint with the tail end of the cleaning liquid supply pipe (1301), the water joint (5110) and the cleaning liquid joint (5111) are in the same structure and are both in a circular boss structure protruding outwards from the lower cleaner (51), a tapered hole is arranged in the middle of the circular boss structure, a cylindrical section is arranged on the rear side of the tapered hole, the inner diameter of the cylindrical section is larger than the outer diameters of the end parts of the water supply pipe (1201) and the cleaning liquid supply pipe (1301), the major diameter of the tapered hole is smaller than the outer diameter of the widening section, two one-way doors (5114) opening inwards are arranged on the cylindrical section, and the two one-way doors (5114) are in an inclined plane structure on the contact surface.

4. The automatic cleaning device of the novel trough type solar power generation system as claimed in claim 3, wherein a door sealing plate (5115) extending to the rear side of another one-way door (5114) is provided on the rear side of the one-way door (5114) on the inner side; the door sealing plate (5115) is of a plastic structure, and a layer of rubber pad is arranged on the door sealing plate and the door contact surface at the rear side of the other one-way door (5114).