CN220825287U

CN220825287U - Cleaning device of offshore floating type photovoltaic system

Info

Publication number: CN220825287U
Application number: CN202322518026.2U
Authority: CN
Inventors: 苏英杰; 王蓉; 蔡东伟; 刘贤权; 李键; 陆剑; 程晓晖; 谭诗剑; 冯洪奎
Original assignee: Shanghai Ocean Engineering Equipment Manufacturing Innovation Center Co ltd
Current assignee: Shanghai Ocean Engineering Equipment Manufacturing Innovation Center Co ltd
Priority date: 2023-09-17
Filing date: 2023-09-17
Publication date: 2024-04-23
Anticipated expiration: 2033-09-17

Abstract

The utility model discloses a cleaning device of a marine floating type photovoltaic system, which comprises a circular guide rail and a connecting rod, wherein a cleaning mechanism is arranged on the connecting rod, a rotating shaft is arranged at the fixed end, and an automatic travelling mechanism is arranged at the movable end; the cleaning device further comprises a drive mechanism and a controller, the controller comprising a precipitation detector. According to the utility model, a special cleaning device is designed according to the characteristics of the offshore floating type photovoltaic system, on one hand, a circular rotary cleaning mode is used for replacing a square translation type cleaning mode, and on the other hand, rainwater resources acquired at sea can be fully utilized for cleaning dirt such as dust, bird droppings and the like, so that the manual maintenance frequency is reduced, and the operation and maintenance cost is reduced.

Description

Cleaning device of offshore floating type photovoltaic system

Technical Field

The utility model belongs to the technical field of offshore photovoltaic cleaning, and particularly relates to a cleaning device of an offshore floating photovoltaic system.

Background

The country supports and develops the low-carbon industry, and promotes, develops and uses solar energy. With the help and support of national policies, photovoltaic power stations are established in many areas of China. The dust accumulated on the surface of the photovoltaic panel not only reduces the power generation efficiency of the photovoltaic panel, but also can form hot spots and even damage the photovoltaic panel, so that the dust on the surface of the photovoltaic panel needs to be cleaned regularly. Photovoltaic panels are typically arranged in an array in open areas or at sea at a height Wen Shaoyu. In order to enable the photovoltaic module to stably absorb solar energy, the photovoltaic module needs to be subjected to regular dedusting and cleaning, and the dust is prevented from affecting the solar energy absorption efficiency of the photovoltaic module.

As the application of photovoltaic power generation technology on water is becoming wider and wider in inland waters, people are beginning to pay attention to the application of photovoltaic power generation technology in marine environments. The offshore photovoltaic has two basic forms of fixed type and floating type, and compared with a fixed type basic structure, the floating type basic structure has the advantages of being larger in applicable water depth, more convenient to recycle, large in generating capacity and the like. The main parts of the offshore floating type photovoltaic system comprise a photovoltaic panel, a combiner box, inverter equipment, a transformer, a floating cable, a floating body stand and the like. Because of the influence of wind and waves, the floating body stand is generally of a circular structure, and the photovoltaic panels arranged on the floating body stand are also generally of a layout and a shape which are more similar to a circular shape for the consideration of the utilization rate, such as a hexagon and the like, and an automatic cleaning device for square photovoltaic panels suitable for land is not matched with the shape of the photovoltaic panels; on the other hand, the offshore operation cost is higher, so that the resources such as cleaning water and the like cannot be timely supplemented like a cleaning device on land. Therefore, it is necessary to effectively utilize the related resources at sea for cleaning and further reduce the frequency of manual maintenance to reduce the maintenance cost.

In summary, how to design a special cleaning device according to the characteristics of the offshore floating photovoltaic system is a problem to be solved urgently.

Disclosure of utility model

In view of the above, an object of the present utility model is to provide a cleaning device for a floating photovoltaic system in the sea, which uses a circular rotary cleaning mode instead of a square translational cleaning mode, and which can fully utilize water resources obtained in the sea to reduce the frequency of manual maintenance and reduce the maintenance cost.

In order to achieve the above object, the utility model provides a cleaning device of a floating photovoltaic system at sea, comprising a circular guide rail and a connecting rod, wherein the circular guide rail is arranged around the periphery of a photovoltaic panel of the floating photovoltaic system at sea, the connecting rod comprises a fixed end and a movable end, the fixed end is arranged at the center of the circular guide rail, a cleaning mechanism is arranged on the connecting rod, a rotating shaft is arranged on the fixed end, an automatic travelling mechanism is arranged at the movable end, and the automatic travelling mechanism can travel along the guide rail;

The cleaning device further comprises a driving mechanism and a controller, wherein the driving mechanism is used for driving the cleaning mechanism and the automatic travelling mechanism, the controller comprises a precipitation detector, and the controller is used for starting the cleaning mechanism and the automatic travelling mechanism when natural precipitation is finished.

Preferably, the controller further comprises a direction detector for detecting the orientation of the link, and the controller is further used for enabling the link to face north and north when the cleaning device is in standby.

Preferably, the cleaning device further comprises a water spraying mechanism, the controller further comprises a timer, and the controller is further used for starting the cleaning mechanism, the automatic travelling mechanism and the water spraying mechanism after the cleaning device is continuously standby for N days; the water spraying mechanism extracts water for spraying from a water receiver, N is more than or equal to 7, and N can be set according to the requirement.

Preferably, the self-propelled mechanism comprises a pulley comprising a non-skid tyre, the pulley being in contact with the rail.

Preferably, the water spraying mechanism is arranged at the center of the circular guide rail, and can spray water upwards from the center of the circular guide rail, so that the water can cover the offshore floating photovoltaic system by 360 degrees.

Preferably, the water spraying mechanism is arranged on the connecting rod, the water spraying mechanism comprises a plurality of water spraying outlets and a water spraying pipeline, the water spraying outlets are arranged on the connecting rod in an array, and the water spraying pipeline is arranged in the connecting rod.

Preferably, the cleaning mechanism comprises a 360 ° rotatable cleaning brush head, the array of cleaning brush heads being disposed on a link.

Preferably, the driving mechanism comprises a driving motor, the driving motor is powered by the offshore floating type photovoltaic system, the motor is fixedly connected with the connecting rod through the fixing plate, the shaft part of the motor is connected with a connecting shaft, the connecting shaft and the shaft part of the cleaning brush head all extend to the outer side of the connecting rod, the two end parts of the connecting rod are respectively sleeved with a second gear, the shaft part of the cleaning brush head is sleeved with a first gear, and the first gears are mutually meshed with the two second gears.

The beneficial effects of the utility model are as follows:

(1) Because the environments of the offshore floating type photovoltaic system and the land photovoltaic system are greatly different, the circular rotary cleaning mode is adopted, so that the offshore floating type photovoltaic system can be suitable for most of the offshore floating type photovoltaic systems, and can be installed even if the offshore floating type photovoltaic system is put into use, and has extremely high universality;

(2) The utility model can automatically clean the offshore floating type photovoltaic system, reduces the manual maintenance frequency to reduce the maintenance cost, solves the problem of difficult manual maintenance of the offshore floating type photovoltaic system, and is also provided with the precipitation detector and the automatic water spraying structure, thereby fully utilizing water resources acquired at sea, reducing the maintenance difficulty and greatly prolonging the service life of the offshore floating type photovoltaic system.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a cleaning apparatus for an offshore floating photovoltaic system according to the present disclosure;

Fig. 2 is a schematic structural view of a connecting rod of a cleaning device of an offshore floating photovoltaic system.

Detailed Description

The utility model aims at providing a cleaning device of a floating type photovoltaic system on the sea, which uses a circular rotary cleaning mode to replace a square translation type cleaning mode, and on the other hand, the cleaning device can fully utilize water resources acquired on the sea to reduce the manual maintenance frequency so as to reduce the maintenance cost.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiment discloses a cleaning device for an offshore floating type photovoltaic system, and a photovoltaic panel 1 of the offshore floating type photovoltaic system also usually adopts a layout and a shape which are more approximate to a circle, and the embodiment uses the photovoltaic panel 1 of the offshore floating type photovoltaic system as a hexagonal layout for illustration. As shown in fig. 1, the cleaning device of the offshore floating type photovoltaic system 1 comprises a circular guide rail 2 and a connecting rod 3, the circular guide rail 2 is arranged around the periphery of the photovoltaic panel 1 of the offshore floating type photovoltaic system, as shown in fig. 2, the connecting rod 3 comprises a fixed end 31 and a movable end 32, the fixed end is arranged at the center of the circular guide rail 2, a cleaning mechanism 4 is arranged on the connecting rod 3, a rotating shaft is arranged at the fixed end, an automatic travelling mechanism 321 is arranged at the movable end, and the automatic travelling mechanism 321 can travel along the guide rail.

The cleaning device further comprises a drive mechanism 5 and a controller (the position of the controller is not shown in the figures) for driving the cleaning mechanism and the self-travelling mechanism, which has the advantage that the self-travelling mechanism driven on the circular guide rail from the periphery is more labour-saving and power-saving than the central drive.

The controller includes the precipitation detector, and the controller is used for starting cleaning mechanism and automatic running gear 321 when natural precipitation finishes, and the benefit of doing so can make full use of natural precipitation cleans to unnecessary water can also collect the deposit through the water receiver for use when cleaning next time.

In other embodiments, the controller further comprises a direction detector for detecting the orientation of the link 3, and the controller is further adapted to direct the link 3 to the north when the cleaning device is on standby, which has the advantage that the shadow formed by the link 3 shining the link 3 towards the north sun has a minimal effect on the photovoltaic panels 1 of the offshore floating photovoltaic system.

In a preferred embodiment, the cleaning device needs to perform the cleaning procedure itself if it does not rain for a period of time, considering extreme weather at sea, so the cleaning device needs to have a water spraying function. The cleaning device further comprises a water spraying mechanism, the controller further comprises a timer, and the controller is further used for starting the cleaning mechanism 4, the automatic travelling mechanism 321 and the water spraying mechanism after the cleaning device is continuously standby for N days; the water spraying mechanism extracts water for spraying from a water reservoir, N is 7 or more, and in actual circumstances, N can be set as required by those skilled in the art.

In a preferred embodiment, the water spraying mechanism of the cleaning device may be disposed at the center of the circular guide rail 2, and the water spraying mechanism sprays water toward the sky, so that the water can be diffused around 360 ° to cover the whole photovoltaic panel 1 of the offshore floating photovoltaic system, and the driving mechanism starts to work, and the cleaning is performed together when spraying water, so that the water is discharged out of the photovoltaic panel 1 of the offshore floating photovoltaic system. In practical situations, the driving mechanism should also work for a period of time after the water spraying is finished so as to drain the water out of the photovoltaic panel 1 of the offshore floating photovoltaic system as much as possible, and the influence caused by the water left on the photovoltaic panel 1 of the offshore floating photovoltaic system is reduced.

In a preferred embodiment, the water spraying mechanism of the cleaning device may be disposed on the connecting rod 3, so that the corresponding water spraying pipeline is disposed inside the connecting rod 3, and spraying water while the driving mechanism drives the connecting rod 3 to work can also effectively cover the photovoltaic panel 1 of the whole offshore floating photovoltaic system for efficient cleaning.

In a preferred embodiment, because the photovoltaic panel 1 of the offshore floating photovoltaic system has the problem of bird droppings in addition to dust, a cleaning device with large force is required, and the soft brush head of the common cleaning mechanism 4 cannot clean the bird droppings completely, the cleaning mechanism 4 of the embodiment comprises a cleaning brush head capable of rotating by 360 degrees, and the cleaning brush head array is arranged on the connecting rod.

In other embodiments, the drive mechanism comprises a drive motor, the drive motor is powered by the offshore floating photovoltaic system, the motor is fixedly connected with the connecting rod through the fixing plate, the shaft part of the motor is connected with a connecting shaft, the connecting shaft and the shaft part of the cleaning brush head are all extended to the outer side of the connecting rod, the two end parts of the connecting rod are respectively sleeved with a second gear, the shaft part of the cleaning brush head is sleeved with a first gear, and the first gears are all meshed with the two second gears.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The cleaning device of the offshore floating type photovoltaic system is characterized by comprising a circular guide rail and a connecting rod, wherein the circular guide rail is arranged around the periphery of a photovoltaic panel of the offshore floating type photovoltaic system, the connecting rod comprises a fixed end and a movable end, the fixed end is arranged at the circle center of the circular guide rail, a cleaning mechanism is arranged on the connecting rod, the fixed end is provided with a rotating shaft, the movable end is provided with an automatic travelling mechanism, and the automatic travelling mechanism can travel along the guide rail;

The cleaning device further comprises a driving mechanism and a controller, wherein the driving mechanism is used for driving the cleaning mechanism and the automatic travelling mechanism, the controller comprises a precipitation detector, and the controller is used for starting the cleaning mechanism and the automatic travelling mechanism after natural precipitation is performed for a period of time.

2. The cleaning apparatus of claim 1, wherein the controller further comprises a direction detector for detecting an orientation of the link, the controller further configured to orient the link in the north-positive direction when the cleaning apparatus is on standby.

3. The cleaning apparatus of claim 1, further comprising a water spray mechanism, the controller further comprising a timer, the controller further configured to activate the cleaning mechanism, the automatic travelling mechanism, and the water spray mechanism after N consecutive days of standby of the cleaning apparatus; the water spraying mechanism extracts water for spraying from a water receiver, and N is more than or equal to 7.

4. The cleaning apparatus of claim 1, wherein the self-propelled mechanism comprises a pulley comprising a non-skid tire, the pulley in contact with the rail.

5. A cleaning device according to claim 3, wherein the water spraying mechanism is arranged at the center of the circular guide rail, and the water spraying mechanism can spray water upwards from the center of the circle, so that the water can cover the offshore floating photovoltaic system by 360 degrees.

6. A cleaning device according to claim 3, wherein the water spray mechanism is provided on a link, the water spray mechanism comprising a plurality of water spray outlets and a water spray line, the array of water spray outlets being provided on the link, the water spray line being provided within the link.

7. The cleaning apparatus of claim 1, wherein the cleaning mechanism comprises a 360 ° rotatable cleaning brush head, the array of cleaning brush heads being disposed on a link.

8. The cleaning device of claim 7, wherein the drive mechanism comprises a drive motor, the drive motor is powered by the offshore floating photovoltaic system, the motor is fixedly connected with the connecting rod through a fixed plate, the shaft portion of the motor is connected with a connecting shaft, the connecting shaft and the shaft portion of the cleaning brush head extend to the outer side of the connecting rod, the two end portions of the connecting rod are sleeved with second gears, the shaft portion of the cleaning brush head is sleeved with first gears, and the first gears are meshed with the two second gears.