阅读说明：本技术 光伏组件降温清洁增效系统 (Clean increase system of photovoltaic module cooling ) 是由 周龙华 李琼 周兵 邵臻霖 王功选 谭禹 曾强 罗锦跃 于 2020-12-04 设计创作，主要内容包括：本发明公开了一种光伏组件降温清洁增效系统,包括光伏组件、光伏支架、喷水装置、清洗装置、喷水管、清洗软管、温度传感器、水流量计、喷水电磁阀、清洗电磁阀、PLC控制器以及与水源连通的高压水泵,光伏组件通过光伏支架安装在屋顶上,喷水装置安装在屋顶的高位置处,清洗装置包括移动机构、清刷机构,清刷机构通过移动机构安装在光伏组件的上方,并且清刷机构与光伏组件的顶面刷洗接触。该伏组件降温清洁增效系统既能够降低光伏组件的表面温度,又能及时清洁光伏组件表面的灰尘和污垢,从而提高光伏组件的发电效率和发电量,保证了光伏组件的使用性能,延长了光伏组件的使用寿命。(The invention discloses a cooling, cleaning and synergistic system of a photovoltaic module, which comprises the photovoltaic module, a photovoltaic support, a water spraying device, a cleaning device, a water spraying pipe, a cleaning hose, a temperature sensor, a water flow meter, a water spraying electromagnetic valve, a cleaning electromagnetic valve, a PLC (programmable logic controller) and a high-pressure water pump communicated with a water source, wherein the photovoltaic module is installed on a roof through the photovoltaic support, the water spraying device is installed at the high position of the roof, the cleaning device comprises a moving mechanism and a cleaning mechanism, the cleaning mechanism is installed above the photovoltaic module through the moving mechanism, and the cleaning mechanism is in brushing contact with the top surface of the photovoltaic module. The photovoltaic module cooling cleaning synergistic system can reduce the surface temperature of the photovoltaic module and clean dust and dirt on the surface of the photovoltaic module in time, so that the power generation efficiency and the power generation amount of the photovoltaic module are improved, the service performance of the photovoltaic module is ensured, and the service life of the photovoltaic module is prolonged.)

1. A cooling, cleaning and synergistic system of a photovoltaic module is characterized by comprising the photovoltaic module, a photovoltaic support, a water spraying device, a cleaning device, a water spraying pipe, a cleaning hose, a first branch water pipe, a second branch water pipe, a temperature sensor, a water flow meter, a water spraying electromagnetic valve, a cleaning electromagnetic valve, a PLC (programmable logic controller) and a high-pressure water pump communicated with a water source, wherein the photovoltaic module is installed on a roof through the photovoltaic support, the water spraying device is installed at the high position of the roof, the cleaning device comprises a moving mechanism and a brushing mechanism, the brushing mechanism is installed above the photovoltaic module through the moving mechanism, and the brushing mechanism is in brushing contact with the top surface of the photovoltaic module; the water spraying electromagnetic valve and the cleaning electromagnetic valve are respectively communicated with the high-pressure water pump through the first branch pipe and the second branch pipe, the water spraying device is connected with the water spraying electromagnetic valve through the water spraying pipe and the water flowmeter, the cleaning mechanism is connected with the cleaning electromagnetic valve through the cleaning hose, the temperature sensor is installed on the back face of the photovoltaic module, the temperature sensor and the water flowmeter are respectively connected with the PLC controller through signals, and the water spraying device, the water spraying electromagnetic valve, the cleaning electromagnetic valve, the moving mechanism and the high-pressure water pump are respectively electrically connected with the PLC controller.

2. The cooling, cleaning and efficiency-enhancing system of claim 1, wherein the brushing mechanism comprises a water-driven rotating device and a brush, the brush is mounted on the water-driven rotating device, the brushing mechanism is communicated with the cleaning hose through the water-driven rotating device, and the brushing mechanism is in brushing contact with the top surface of the photovoltaic module through the brush.

3. The cooling, cleaning and efficiency-improving system for photovoltaic modules as claimed in claim 2, wherein the water-driven rotating device comprises a driving water tank, a first bearing, a second bearing, an impeller, a brush rotating shaft, a high-pressure water inlet hole and a water spray nozzle, wherein a first through hole and a second through hole are respectively formed on two sides of the driving water tank, and the first bearing and the second bearing are respectively mounted on the first through hole and the second through hole; the impeller is provided with an impeller shaft hole, the first bearing and the second bearing are respectively provided with a first shaft hole and a second shaft hole, the brush rotating shaft sequentially penetrates through the first shaft hole, the impeller shaft hole and the second shaft hole, and the impeller is fixedly connected with the brush rotating shaft in the driving water tank; the high-pressure water inlet hole is formed in the top end of the driving water tank, the impeller is located right below the high-pressure water inlet hole, and the water driving and rotating device is communicated with the high-pressure water pump through the high-pressure water inlet hole; the water spray opening is communicated with the driving water tank.

4. The cooling, cleaning and efficiency-improving system for photovoltaic modules as claimed in claim 3, wherein the driving water tank comprises a bearing mounting cover and a bearing mounting seat, the first through hole and the high-pressure water inlet hole are formed in the bearing mounting seat, the second through hole is formed in the bearing mounting cover, and the bearing mounting cover is in cover connection with the bearing mounting seat.

5. The cooling, cleaning and efficiency-improving system of the photovoltaic module as claimed in claim 3, wherein the brush rotating shaft comprises a first water spraying part, a water inlet part and a second water spraying part, the first water spraying part and the second water spraying part are respectively located at two sides outside the driving water tank, the number of the water spraying ports is multiple, and the multiple water spraying ports are distributed on the first water spraying part and the second water spraying part; the water inlet part is positioned in the driving water tank and is provided with a water inlet communicated with the driving water tank, a water flowing channel is arranged in the brush rotating shaft, and the water spray nozzle is communicated with the water inlet through the water flowing channel.

6. The cooling, cleaning and efficiency-improving system for photovoltaic modules as claimed in claim 5, wherein there are two brushes, two brushes are respectively installed on the first water spraying part and the second water spraying part, the brushes are provided with a plurality of water spraying brush pipes, and the plurality of water spraying brush pipes are communicated with the plurality of water spraying nozzles.

7. The cooling, cleaning and efficiency-improving system for photovoltaic modules as defined in any one of claims 1 to 6, wherein the cleaning mechanism further comprises a first handle and a second handle, the first handle and the second handle are respectively mounted on the upper and lower sides of the middle portion of the cleaning mechanism, the moving mechanism comprises a driving motor, a driving wheel, a driven wheel, a transmission belt, a first slide rail and a second slide rail, the first slide rail and the second slide rail are respectively mounted on the two sides above the photovoltaic module, the two ends of the cleaning mechanism are respectively connected with the first slide rail and the second slide rail in a sliding manner, the driving motor is mounted in the middle portion of one side of the high position of the photovoltaic module, the driving wheel is mounted on the rotation shaft of the driving motor, the driven wheel is mounted in the middle portion of one side of the low position of the photovoltaic module, and one end of the transmission belt is connected with the first handle, the other end of the transmission belt is sequentially wound on the driving wheel and the driven wheel to be connected with the second handle, and the driving motor is electrically connected with the PLC.

8. The cooling, cleaning and efficiency-improving system of a photovoltaic module as claimed in claim 7, wherein the moving mechanism further comprises a first pulley and a second pulley, and two ends of the brushing mechanism are slidably connected with the first slide rail and the second slide rail through the first pulley and the second pulley, respectively.

9. The cooling, cleaning and efficiency-improving system for the photovoltaic modules as claimed in any one of claims 1 to 6, wherein the roof is a herringbone roof, the roof includes a first sloping roof surface and a second sloping roof surface, the number of the photovoltaic modules, the number of the photovoltaic supports, the number of the cleaning devices, the number of the cleaning hoses, the number of the temperature sensors and the number of the cleaning solenoid valves are respectively two, each of the photovoltaic modules is respectively mounted on the first sloping roof surface and the second sloping roof surface through each of the photovoltaic supports, each of the cleaning mechanisms is communicated with each of the cleaning solenoid valves through each of the cleaning hoses, each of the temperature sensors is respectively mounted on the back surface of each of the photovoltaic modules, each of the temperature sensors is respectively in signal connection with the PLC, and each of the cleaning solenoid valves and the moving machine is respectively in electrical connection with the PLC.

10. The cooling, cleaning and efficiency enhancing system for photovoltaic modules as claimed in any one of claims 1 to 6, further comprising a remote monitoring system, wherein the remote monitoring system is connected with the PLC in a remote communication manner.

Technical Field

The invention relates to the technical field of photovoltaic power generation, in particular to a cooling, cleaning and efficiency-improving system for a photovoltaic module.

Background

At present, the development speed of new energy and renewable energy in China is very rapid, particularly, the photovoltaic power station is built, although China starts late, the development is very rapid, and the photovoltaic power station has the largest scale in the world.

How to effectively improve the power generation efficiency and the power generation amount of the photovoltaic power station is an important subject of current research. In order to achieve the initial designed power generation amount after the photovoltaic power station is built, only refined operation and maintenance management can be used for ensuring the power generation amount, however, in the research process, people find that the surface and internal temperature of the component is one of the main factors influencing the output power of the crystalline silicon photovoltaic component, and the benefit of the photovoltaic power station is influenced. The maximum power temperature coefficient of the crystalline silicon component is generally-0.38 to-0.42%/DEG C. The photovoltaic modules of the roof distributed photovoltaic power station are affected by color steel tiles and the like, the surface and internal temperature is very high, and the output power is greatly affected; therefore, reducing the operating temperature of rooftop photovoltaic modules is an important means of increasing the efficiency of photovoltaic systems. At present, the technology and means for improving the output power of the distributed photovoltaic module are mainly carried out on the basis of the aspects of module arrangement, inverter configuration, module cleaning and the like; the research and application of how to reduce the working temperature of the photovoltaic module so as to improve the output performance of the module are rarely carried out, and the related cooling system and benefit analysis are not correspondingly researched and applied. In addition, the general dust and dirt on the surface of the solar photovoltaic module arranged on the roof are more, and the dust and dirt accumulated on the surface of the solar photovoltaic module can shield sunlight, so that the power generation efficiency of the solar photovoltaic module is reduced. Therefore, if the surface of the solar photovoltaic module can be effectively cleaned, the generating efficiency of the photovoltaic power station can be further improved under the same installed capacity.

In the prior art, a photovoltaic module cooling device with application number of CN201920151833.6 comprises a water source, a water pump, a water supply pipe network, a water spray branch pipe and a water spray device; the top surface of the photovoltaic support is an inclined slope, and a plurality of photovoltaic modules are laid on the inclined slope; installing a water spraying branch pipe on one side of the high position of the top surface of the photovoltaic support, and arranging a plurality of water spraying devices facing the photovoltaic module on the water spraying branch pipe; the water inlet end of the water spray branch pipe is connected with one end of a water supply pipe network, the other end of the water supply pipe network is connected with a water pump, and a water inlet of the water pump is communicated with a water source. The advantages are that: by spraying water on the surface of the photovoltaic module, the surface temperature of the photovoltaic module is effectively reduced, and the power generation efficiency and the power generation capacity of the photovoltaic module are partially improved; but dust and dirt on the surface of the photovoltaic module cannot be cleaned well and thoroughly, and after water is sprayed on the upper surface of the photovoltaic module, the dust is more easily adhered to the upper surface of the photovoltaic module, and the accumulation of the dust and the dirt can shield sunlight, so that the power generation efficiency of the photovoltaic module is reduced.

Therefore, it is highly desirable to develop a photovoltaic module cooling cleaning synergistic system which can not only reduce the surface temperature of the photovoltaic module, but also clean dust and dirt on the surface of the photovoltaic module in time.

Disclosure of Invention

The invention aims to provide a photovoltaic module cooling, cleaning and efficiency-improving system aiming at the defects, which can reduce the surface temperature of a photovoltaic module and clean dust and dirt on the surface of the photovoltaic module in time, so that the power generation efficiency and the power generation capacity of the photovoltaic module are improved, the service performance of the photovoltaic module is ensured, and the service life of the photovoltaic module is prolonged.

The technical scheme is as follows:

a cooling, cleaning and synergistic system for a photovoltaic module comprises the photovoltaic module, a photovoltaic support, a water spraying device, a cleaning device, a water spraying pipe, a cleaning hose, a first branch water pipe, a second branch water pipe, a temperature sensor, a water flow meter, a water spraying electromagnetic valve, a cleaning electromagnetic valve, a PLC (programmable logic controller) and a high-pressure water pump communicated with a water source, wherein the photovoltaic module is installed on a roof through the photovoltaic support, the water spraying device is installed at a high position of the roof, the cleaning device comprises a moving mechanism and a brushing mechanism, the brushing mechanism is installed above the photovoltaic module through the moving mechanism, and the brushing mechanism is in brushing contact with the top surface of the photovoltaic module; the water spraying electromagnetic valve and the cleaning electromagnetic valve are respectively communicated with the high-pressure water pump through the first branch pipe and the second branch pipe, the water spraying device is connected with the water spraying electromagnetic valve through the water spraying pipe and the water flowmeter, the cleaning mechanism is connected with the cleaning electromagnetic valve through the cleaning hose, the temperature sensor is installed on the back face of the photovoltaic module, the temperature sensor and the water flowmeter are respectively connected with the PLC controller through signals, and the water spraying device, the water spraying electromagnetic valve, the cleaning electromagnetic valve, the moving mechanism and the high-pressure water pump are respectively electrically connected with the PLC controller.

The water spraying device is a directional spray nozzle, a swinging spray nozzle or a high-pressure spray dust-settling sprayer.

The cleaning mechanism comprises a water driving rotating device and a brush, the brush is installed on the water driving rotating device, the cleaning mechanism is communicated with the cleaning hose through the water driving rotating device, and the cleaning mechanism is in brushing contact with the top surface of the photovoltaic module through the brush.

The water-driven rotating device comprises a driving water tank, a first bearing, a second bearing, an impeller, a brush rotating shaft, a high-pressure water inlet hole and a water spray nozzle, wherein a first through hole and a second through hole are respectively formed in two sides of the driving water tank, and the first bearing and the second bearing are respectively arranged on the first through hole and the second through hole; the impeller is provided with an impeller shaft hole, the first bearing and the second bearing are respectively provided with a first shaft hole and a second shaft hole, the brush rotating shaft sequentially penetrates through the first shaft hole, the impeller shaft hole and the second shaft hole, and the impeller is fixedly connected with the brush rotating shaft in the driving water tank; the high-pressure water inlet hole is formed in the top end of the driving water tank, the impeller is located right below the high-pressure water inlet hole, and the water driving and rotating device is communicated with the high-pressure water pump through the high-pressure water inlet hole; the water spray opening is communicated with the driving water tank.

The driving water tank comprises a bearing mounting cover and a bearing mounting seat, the first through hole and the high-pressure water inlet hole are formed in the bearing mounting seat, the second through hole is formed in the bearing mounting cover, and the bearing mounting cover is connected with the bearing mounting seat in a covering mode.

The brush rotating shaft comprises a first water spraying part, a water inlet part and a second water spraying part, the first water spraying part and the second water spraying part are respectively positioned at two sides outside the driving water tank, the number of water spraying ports is multiple, and the multiple water spraying ports are distributed on the first water spraying part and the second water spraying part; the water inlet part is positioned in the driving water tank and is provided with a water inlet communicated with the driving water tank, a water flowing channel is arranged in the brush rotating shaft, and the water spray nozzle is communicated with the water inlet through the water flowing channel.

The brush is two, two the brush is installed respectively on first water spray portion, the second water spray portion, be equipped with a plurality of water spray brush pipes on the brush, it is a plurality of water spray brush pipe and a plurality of the water jet intercommunication.

The cleaning mechanism further comprises a first handle and a second handle, the first handle and the second handle are respectively arranged at the upper side and the lower side of the middle part of the cleaning mechanism, the moving mechanism comprises a driving motor, a driving wheel, a driven wheel, a driving belt, a first sliding rail and a second sliding rail, the first sliding rail and the second sliding rail are respectively arranged at the two sides above the photovoltaic component, the two ends of the cleaning mechanism are respectively in sliding connection with the first sliding rail and the second sliding rail, the driving motor is arranged at the middle part of one side of the high position of the photovoltaic component, the driving wheel is arranged on the rotating shaft of the driving motor, the driven wheel is arranged at the middle part of one side of the low position of the photovoltaic component, one end of the driving belt is connected with the first handle, the other end of the driving belt is sequentially wound on the driving wheel and the driven wheel to be connected with the second handle, the driving motor is electrically connected with the PLC.

The moving mechanism further comprises a first pulley and a second pulley, and two ends of the cleaning mechanism are respectively connected with the first sliding rail and the second sliding rail in a sliding mode through the first pulley and the second pulley.

The roof is a herringbone roof, the roof comprises a first inclined roof and a second inclined roof, the number of the photovoltaic assemblies, the number of the photovoltaic supports, the number of the cleaning devices, the number of the cleaning hoses, the number of the temperature sensors and the number of the cleaning electromagnetic valves are respectively two, each photovoltaic assembly is respectively arranged on the first inclined roof and the second inclined roof through each photovoltaic support, each cleaning mechanism is communicated with each cleaning electromagnetic valve through each cleaning hose, each temperature sensor is respectively arranged on the back of each photovoltaic assembly, each temperature sensor is respectively in signal connection with the PLC, and each cleaning electromagnetic valve and the mobile machine are respectively in electric connection with the PLC.

The PLC remote control system is characterized by further comprising a remote monitoring system, and the remote monitoring system is in remote communication connection with the PLC.

It should be noted that:

the foregoing references to "first and second …" do not denote any particular quantity or order, but rather are used to distinguish one name from another.

In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like, refer to an orientation or positional relationship that is conventionally placed based on the use of the product of the present invention, or an orientation or positional relationship that is conventionally understood by those skilled in the art, and are used merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.

The above-mentioned "high position of the roof" and "high position of the photovoltaic module" are located at the ridge of the roof.

The photovoltaic module low position is positioned at the eave of the roof.

The following illustrates the advantages or principles of the invention:

1. the invention provides a cooling, cleaning and synergistic system of a photovoltaic module, which comprises the photovoltaic module, a photovoltaic bracket, a water spraying device, a cleaning device, a water spraying pipe, a cleaning hose, a first branch water pipe, a second branch water pipe, a temperature sensor, a water flowmeter, a water spraying electromagnetic valve, a cleaning electromagnetic valve, a PLC (programmable logic controller) and a high-pressure water pump communicated with a water source, wherein the water spraying electromagnetic valve is used for controlling water flow to enter the water flowmeter and the water spraying pipe so as to control the water spraying device to spray the photovoltaic module, the temperature sensor is used for detecting the surface temperature of the photovoltaic module and feeding the surface temperature of the photovoltaic module back to the PLC, when the surface temperature of the photovoltaic module is higher than a control threshold value, the PLC is triggered to open the high-pressure water pump and the water spraying electromagnetic valve, the PLC controls the water spraying device to spray the photovoltaic module through the water spraying electromagnetic, the water flowmeter is used for measuring the flow of water flow, the water flowmeter feeds water flow information back to the PLC controller in real time, and when the cooling effect of the photovoltaic module does not reach an expected set value, the PLC controller can increase the water flow speed of the high-pressure water pump, so that the effect of reducing the working temperature of the module is achieved, the accurate control of the water flow is realized, the cost is saved, and the economic efficiency of the spraying and cooling of the photovoltaic module is improved. The cleaning electromagnetic valve is used for controlling water flow to enter the cleaning hose, so that the cleaning mechanism is controlled to clean the upper surface of the photovoltaic assembly, the moving mechanism can move the cleaning mechanism to a place where the photovoltaic assembly needs to be cleaned, the photovoltaic assembly cooling cleaning and efficiency improving system can reduce the surface temperature of the photovoltaic assembly and can clean dust and dirt on the surface of the photovoltaic assembly in time, the power generation efficiency and the power generation capacity of the photovoltaic assembly are improved, the service performance of the photovoltaic assembly is guaranteed, and the service life of the photovoltaic assembly is prolonged.

2. The cleaning mechanism comprises a water driving rotating device and a brush, wherein the water driving rotating device is communicated with a high-pressure water pump, and is driven by high-pressure water flow of the high-pressure water pump, the water driving rotating device drives the brush to rotate so as to drive the brush to rotate at a high speed to clean the upper surface of a photovoltaic module.

3. The water-driven rotating device comprises a driving water tank, a first bearing, a second bearing, an impeller, a brush rotating shaft, a high-pressure water inlet hole and a water spraying opening, wherein high-pressure water enters the driving water tank through the high-pressure water inlet hole, the high-pressure water drives the brush rotating shaft to rotate at a high speed through the impeller so as to drive the brush to rotate at a high speed, and the high-pressure water is decompressed and flows out through the water spraying opening, so that the effects of brushing and washing are achieved.

4. The driving water tank comprises a bearing mounting cover and a bearing mounting seat, wherein the bearing mounting cover is connected with the bearing mounting seat in a covering manner; the brush rotating shaft and the driving water tank are conveniently assembled.

5. The brush rotating shaft comprises a first water spraying part, a water inlet part and a second water spraying part, wherein a plurality of water spraying ports are distributed on the first water spraying part and the second water spraying part, and the plurality of water spraying ports enable the effect of brushing and washing to be better; the water inlet portion is equipped with the water inlet, and the water jet passes through flowing water passageway and water inlet UNICOM, and the high pressure water flows through flowing water passageway from the water inlet and flows out from the water jet, because the brush axis of rotation produces centrifugal force when rotating, flows in the high pressure water from the water inlet, gets rid of through the pressure release of water jet, and the cleaning performance is better.

6. The brush is provided with the plurality of water spraying brush pipes which are communicated with the plurality of water spraying ports, high-pressure water is sprayed out through the water spraying brush pipes, and the water spraying brush pipes and the brush are used for brushing while washing, so that the cleaning effect is cleaner.

7. The moving mechanism comprises a driving motor, a driving wheel, a driven wheel, a transmission belt, a first sliding rail and a second sliding rail, when the cleaning mechanism needs to be moved from a low position (eave position) of the photovoltaic assembly to a high position (ridge position) of the photovoltaic assembly, the driving motor rotates in the forward direction, the transmission belt enables the cleaning mechanism to move to the high position (ridge position) along the first sliding rail and the second sliding rail by pulling a first hand, when the cleaning mechanism needs to be moved from the high position (ridge position) of the photovoltaic assembly to the low position (eave position) of the photovoltaic assembly, the driving motor rotates in the reverse direction, and the transmission belt enables the cleaning mechanism to move to the low position (eave position) along the first sliding rail and the second sliding rail by pulling a second hand.

8. The moving mechanism further comprises a first pulley and a second pulley, and two ends of the cleaning mechanism are respectively connected with the first sliding rail and the second sliding rail in a sliding mode through the first pulley and the second pulley, so that the cleaning mechanism can slide up and down more smoothly.

9. The invention also comprises a remote monitoring system, the PLC is in communication connection with the remote monitoring system through a network, and can upload various data to the cloud, thereby realizing remote monitoring of the data and remote control through the remote monitoring system.

Drawings

Fig. 1 is a schematic structural diagram of a cooling, cleaning and efficiency-increasing system for a photovoltaic module according to an embodiment of the invention.

Fig. 2 is a schematic plan view of a cleaning device of a cooling, cleaning and efficiency-increasing system of a photovoltaic module according to an embodiment of the invention.

Fig. 3 is a schematic perspective view of a cleaning mechanism of a cooling, cleaning and efficiency-increasing system of a photovoltaic module according to an embodiment of the invention.

Fig. 4 is a schematic plan view of a cleaning mechanism of a cooling, cleaning and efficiency-increasing system of a photovoltaic module according to an embodiment of the invention.

Fig. 5 is a sectional view taken along line a-a of fig. 4.

Fig. 6 is a perspective view of a brush rotating shaft of the cooling, cleaning and efficiency-increasing system of the photovoltaic module according to the embodiment of the invention.

Description of reference numerals:

10. photovoltaic module, 20, water jet equipment, 21, the spray pipe, 30, belt cleaning device, 31, moving mechanism, 311, driving motor, 312, driving wheel, 313, driven wheel, 314, driving belt, 315, first slide rail, 316, second slide rail, 32, brushing mechanism, 321, water drive rotary device, 3211, driving water tank, 3211a, installation cover, 3211b, bearing installation seat, 3212, first bearing, 3213, second bearing, 3214, impeller, 3215, brush rotation axis, 3216, high pressure water inlet, 3217, water jet, 322, brush, 3221, water spray brush pipe, 323, first handle, 324, second handle, 40, high pressure water pump, 51, temperature sensor, 52, water flowmeter, 60, PLC controller, 70, remote monitoring system.

Detailed Description

The following provides a detailed description of embodiments of the invention.

Referring to fig. 1 to 6, the photovoltaic module cooling, cleaning and efficiency increasing system provided by the invention comprises a photovoltaic module 10, a photovoltaic bracket, a water spraying device 20, a cleaning device 30, a water spraying pipe 21, a cleaning hose, a first branch water pipe, a second branch water pipe, a temperature sensor 51, a water flow meter 52, a water spraying electromagnetic valve, a cleaning electromagnetic valve, a PLC controller 60 and a high-pressure water pump 40 communicated with a water source, wherein the photovoltaic module 10 is installed on a roof through the photovoltaic bracket, the water spraying device 20 is installed at a high position of the roof, the cleaning device 30 comprises a moving mechanism 31 and a cleaning mechanism 32, the cleaning mechanism 32 is installed above the photovoltaic module 10 through the moving mechanism 31, and the cleaning mechanism 32 is in brushing contact with the top surface of the photovoltaic module 10; the water spraying electromagnetic valve and the cleaning electromagnetic valve are respectively communicated with the high-pressure water pump 40 through the first branch pipe and the second branch pipe, the water spraying device 20 is communicated with the water spraying electromagnetic valve through the water spraying pipe 21 and the water flow meter 52, the cleaning mechanism 32 is communicated with the cleaning electromagnetic valve through the cleaning hose, the temperature sensor 51 is installed on the back face of the photovoltaic module 10, the temperature sensor 51 and the water flow meter 52 are respectively in signal connection with the PLC 60, and the water spraying device 20, the water spraying electromagnetic valve, the cleaning electromagnetic valve, the moving mechanism 31 and the high-pressure water pump 40 are respectively electrically connected with the PLC 60.

Wherein, the water spraying device 20 is a directional spray nozzle, a swing spray nozzle or a high-pressure spray dust-settling sprayer.

The water spraying electromagnetic valve is used for controlling water flow to enter the water flow meter 52 and the water spraying pipe 21 so as to control the spraying of the water spraying device 20 on the photovoltaic module 10, the temperature sensor 51 is used for detecting the surface temperature of the photovoltaic module 10 and feeding back the surface temperature of the photovoltaic module 10 to the PLC controller 60, when the surface temperature of the photovoltaic module 10 is higher than a control threshold value, the PLC controller 60 is triggered to open the high-pressure water pump 40 and the water spraying electromagnetic valve, the PLC controller 60 controls the water spraying device 20 to spray on the photovoltaic module 10 through the water spraying electromagnetic valve so as to realize the cooling of the photovoltaic module 10, the water flow meter 52 is used for measuring the flow of the water flow, the water flow meter 52 feeds water flow information back to the PLC controller 60 in real time, when the cooling effect of the photovoltaic module 10 does not reach an expected set value, the PLC controller 60 can increase the water flow speed of the high-pressure water pump 40 so as to, the accurate control of the water flow is realized, the cost is saved, and the economic efficiency of the photovoltaic module 10 in spraying and cooling is improved. The cleaning electromagnetic valve is used for controlling water flow to enter the cleaning hose, so that the cleaning mechanism is controlled to clean the upper surface of the photovoltaic assembly 10, the moving mechanism 31 can move the cleaning mechanism 32 to a place where the photovoltaic assembly 10 needs to be cleaned, the photovoltaic assembly cooling cleaning synergistic system can reduce the surface temperature of the photovoltaic assembly 10 and timely clean dust and dirt on the surface of the photovoltaic assembly 10, the power generation efficiency and the power generation amount of the photovoltaic assembly 10 are improved, the use performance of the photovoltaic assembly 10 is guaranteed, and the service life of the photovoltaic assembly 10 is prolonged.

The cleaning mechanism 32 includes a water-driven rotating device 321, a brush 322, a first handle 323, and a second handle 324, the brush 322 is installed on the water-driven rotating device 321, the cleaning mechanism 32 is communicated with the cleaning hose through the water-driven rotating device 321, and the cleaning mechanism 32 is in brushing contact with the top surface of the photovoltaic module 10 through the brush 322. The water-driven rotating device 321 is communicated with the high-pressure water pump 40, the water-driven rotating device 321 is driven by the high-pressure water flow of the high-pressure water pump 40, the water-driven rotating device 321 drives the brush 322 to rotate, the brush 322 is driven to rotate at a high speed to clean the upper surface of the photovoltaic module 10, and the cleaning mechanism 32 is driven by the high-pressure water flow to clean the photovoltaic module.

The water driving rotation device 321 comprises a driving water tank 3211, a first bearing 3212, a second bearing 3213, an impeller 3214, a brush rotation shaft 3215, a high-pressure water inlet 3216, and a water spray 3217, wherein a first through hole and a second through hole are respectively formed on both sides of the driving water tank 3211, and the first bearing 3212 and the second bearing 3213 are respectively installed on the first through hole and the second through hole; the impeller 3214 has an axle hole, the first bearing 3212 and the second bearing 3213 have a first axle hole and a second axle hole, respectively, the brush rotating shaft 3215 sequentially passes through the first axle hole, the axle hole, and the second axle hole, and the impeller 3214 is fixedly connected to the brush rotating shaft 3215 in the driving water tank 3211; the high-pressure water inlet hole 3216 is formed in the top end of the driving water tank 3211, the impeller 3214 is located right below the high-pressure water inlet hole 3216, and the water driving rotation device 321 is communicated with the high-pressure water pump 40 through the high-pressure water inlet hole 3216; the water spraying port 3217 communicates with the driving water tank 3211. High pressure water enters the driving water tank 3211 through the high pressure water inlet 3216, the high pressure water drives the brush rotating shaft 3215 to rotate at a high speed through the impeller 3214, and then drives the brush 322 to rotate at a high speed, and the high pressure water is discharged through the pressure relief of the water outlet 3217, so that the effect of brushing while washing is achieved.

The driving water tank 3211 includes a bearing mounting cover 3211a and a bearing mounting base 3211b, a first through hole and a high-pressure water inlet 3216 are formed in the bearing mounting base 3211b, a second through hole is formed in the bearing mounting cover 3211a, and the bearing mounting cover 3211a is covered and connected with the bearing mounting base 3211 b. The bearing mounting cover 3211a is connected with the bearing mounting base 3211b in a covering manner; the brush rotating shaft 3215 and the driving water tank 3211 are conveniently assembled.

The brush rotating shaft 3215 includes a first water spray part, a water inlet part, and a second water spray part, the first water spray part and the second water spray part are respectively located at two sides outside the driving water tank 3211, the water spray ports 3217 are plural, and the water spray ports 3217 are distributed on the first water spray part and the second water spray part; the water inlet portion is located drive water tank 3211, and the water inlet portion is equipped with the water inlet, and the water inlet communicates with drive water tank 3211, has the flowing water passageway in the brush axis of rotation 3215, and the water jet 3217 communicates with the water inlet through the flowing water passageway. The plurality of water spraying ports 3217 are distributed on the first water spraying part and the second water spraying part, and the effect of washing while brushing is better due to the plurality of water spraying ports 3217; the water inlet portion is equipped with the water inlet, and water jet 3217 passes through flowing water passageway and water inlet UNICOM, and high-pressure water gets into from the water inlet and flows through flowing water passageway and flow out from water jet 3217, because brush axis of rotation 3215 produces centrifugal force when rotating, flows in high-pressure water from the water inlet, and through the pressure release of water jet 3217 and get rid of, the cleaning performance is better.

The number of the brushes 322 is two, the two brushes 322 are respectively installed on the first water spraying part and the second water spraying part, the brushes 322 are provided with a plurality of water spraying brush pipes 3221, and the plurality of water spraying brush pipes 3221 are communicated with a plurality of water spraying ports 3217. The high pressure water is sprayed through the water spray brush pipe 3221, and the water spray brush pipe 3221 and the brush 322 are used for brushing while washing, so that the cleaning effect is cleaner.

The first handle 323 and the second handle 324 are respectively installed at the upper side and the lower side of the middle part of the cleaning mechanism 32, the moving mechanism 31 includes a driving motor 311, a driving wheel 312, a driven wheel 313, a transmission belt 314, a first sliding rail 315 and a second sliding rail 316, the first sliding rail 315 and the second sliding rail 316 are respectively installed at the two sides above the photovoltaic module 10, the two ends of the cleaning mechanism 32 are respectively connected with the first sliding rail 315 and the second sliding rail 316 in a sliding manner, the driving motor 311 is installed at the middle part of one side of the high position of the photovoltaic module 10, the driving wheel 312 is installed on the rotating shaft of the driving motor 311, the driven wheel 313 is installed at the middle part of one side of the low position of the photovoltaic module 10, one end of the transmission belt 314 is connected with the first handle 323, the other end of the transmission belt 314 is sequentially wound on the driving wheel 312, the driven wheel. When the cleaning mechanism 32 needs to be moved from the low position (eave position) of the photovoltaic module 10 to the high position (ridge position) of the photovoltaic module 10, the driving motor 311 rotates forward, the driving belt 314 drives the first hand to move the cleaning mechanism 32 along the first sliding rail 315 and the second sliding rail 316 to the high position (ridge position), when the cleaning mechanism 32 needs to be moved from the high position (ridge position) of the photovoltaic module 10 to the low position (eave position) of the photovoltaic module 10, the driving motor 311 rotates backward, and the driving belt 314 drives the second hand to move the cleaning mechanism 32 along the first sliding rail 315 and the second sliding rail 316 to the low position (eave position).

Further, the moving mechanism 31 further includes a first pulley and a second pulley, and two ends of the brushing mechanism 32 are slidably connected to the first sliding rail 315 and the second sliding rail 316 through the first pulley and the second pulley, respectively. The up-and-down sliding of the cleaning mechanism 32 is smoother.

The roof is a herringbone roof, the roof comprises a first inclined roof and a second inclined roof, the photovoltaic modules 10, the photovoltaic supports, the cleaning device 30, the cleaning hoses, the temperature sensors 51 and the cleaning electromagnetic valves are respectively two, each photovoltaic module 10 is respectively installed on the first inclined roof and the second inclined roof through each photovoltaic support, each cleaning mechanism 32 is communicated with each cleaning electromagnetic valve through each cleaning hose, each temperature sensor 51 is respectively installed on the back of each photovoltaic module 10, each temperature sensor 51 is respectively in signal connection with the PLC 60, and each cleaning electromagnetic valve and the mobile machine are respectively electrically connected with the PLC 60.

Further, the present invention further comprises a remote monitoring system 70, wherein the remote monitoring system 70 is connected with the PLC controller 60 in a remote communication manner. The PLC controller 60 is in communication connection with the remote monitoring system 70 through a network, and can upload various data to the cloud, thereby realizing remote monitoring of data and remote control through the remote monitoring system 70.

The above are merely specific embodiments of the present invention, and the scope of the present invention is not limited thereby; any alterations and modifications without departing from the spirit of the invention are within the scope of the invention.