CN109570117A - A kind of photovoltaic plant automatic cleaning system - Google Patents
A kind of photovoltaic plant automatic cleaning system Download PDFInfo
- Publication number
- CN109570117A CN109570117A CN201910072943.8A CN201910072943A CN109570117A CN 109570117 A CN109570117 A CN 109570117A CN 201910072943 A CN201910072943 A CN 201910072943A CN 109570117 A CN109570117 A CN 109570117A
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- China
- Prior art keywords
- water
- solenoid valve
- spray head
- distributive pipe
- valve
- Prior art date
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- 238000004140 cleaning Methods 0.000 title claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 181
- 239000007921 spray Substances 0.000 claims abstract description 104
- 239000010865 sewage Substances 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 238000011010 flushing procedure Methods 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 1
- 238000009736 wetting Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 24
- 238000000034 method Methods 0.000 description 7
- 238000009825 accumulation Methods 0.000 description 5
- 238000013517 stratification Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/10—Cleaning arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Photovoltaic Devices (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
Photovoltaic plant automatic cleaning system provided by the invention, its control system is when meeting component cleaning condition or component cooling conditions, it is opened or closed according to default rule the first solenoid valve of control and second solenoid valve, it can make in corresponding distributive pipe that there are water flows, and then water spray is realized by corresponding spray head.It opens, makes there are when water flow in the first distributive pipe, first spray head can realize the flushing for corresponding assembly surface dirt by water spray when control system controls the first solenoid valve；Even if assembly surface dust flows on component bottom frame the residual buildup that can generate part of contaminated water after with water, also it can be controlled by opening of the control system for second solenoid valve, make in the second distributive pipe that there are water flows, and then second spray head is made to realize for the removing in corresponding assembly bottom frame along sewage solve the problems, such as to clean in the prior art halfway by water spray.
Description
Technical field
The present invention relates to photovoltaic plant cleaning technology field, in particular to a kind of photovoltaic plant automatic cleaning system.
Background technique
Currently, in many factors for influencing photovoltaic power station power generation efficiency, assembly surface dust stratification be most important one because
One of element.Also, the transmitance that dust stratification not only reduces light directly affects incident photon-to-electron conversion efficiency, while also increasing component and forming hot spot
Risk, part dust may also to component formed corrosiveness.Therefore, assembly surface dust stratification, Ji Nengti are efficiently removed in time
Component Generation Rate is risen, and can be reduced dust to the adverse effect of component, is had important practical significance to power station.
At this stage in existing a variety of photovoltaic power station component cleaning methods, conventional water route cleaning way is due to system cost phase
To lower, become one of common cleaning way of photovoltaic plant.But which there are one the disadvantage is that can only be to assembly surface
Dust is cleaned, and assembly surface dust flows on component bottom frame the delay heap that part of contaminated water can be generated after with water
Product, and sewage air-dry after normally result on component bottom frame along even more serious dust accumulation, in turn result in component local shades,
Influence entire group string generated energy.
Summary of the invention
The present invention provides a kind of photovoltaic plant automatic cleaning system, halfway to solve the problems, such as to clean in the prior art.
To achieve the above object, technical solution provided by the present application is as follows:
A kind of photovoltaic plant automatic cleaning system, comprising: control system, water main, at least the first distributive pipe, at least all the way
Second distributive pipe, at least one first spray head and at least one second spray head all the way；Wherein:
The control system is used for when meeting component cleaning condition or component cooling conditions, is controlled according to default rule
The first solenoid valve for being set on first distributive pipe and the second solenoid valve being set on second distributive pipe open or
It closes；
First distributive pipe is provided at least one outlet for connecting the first spray head；
Second distributive pipe is provided at least one outlet for connecting the second spray head；
The first spray head is used to realize the flushing for corresponding assembly surface dirt by water spray；
The second spray head is used to realize by water spray for the removing in corresponding assembly bottom frame along sewage.
Preferably, the water main is provided at least two outlets, is respectively used to connect the entrance of first distributive pipe
With the entrance of second distributive pipe；
First solenoid valve is set to the inlet of first distributive pipe, for the control according to the control system
It opens or closes；
The second solenoid valve is set to the inlet of second distributive pipe, for the control according to the control system
It opens or closes.
Preferably, the default rule are as follows: first control first solenoid valve and open, and controlled after the first duration
First solenoid valve is closed, the second solenoid valve is opened；Then the second solenoid valve is controlled after the second duration
It closes.
Preferably, the component cleaning condition and the component cooling conditions include: that current time belongs to night, and/
Or, current light degree is lower than threshold value.
Preferably, first distributive pipe and second distributive pipe are multiple；
First solenoid valve that N number of photovoltaic module shares, the second solenoid valve, the first spray head and described
Second spray head forms a standard block, and N is positive integer；
Each standard block poll opens first solenoid valve and the second solenoid valve.
Preferably, first distributive pipe and second distributive pipe are multiple；
Each first solenoid valve is opened simultaneously or is closed, and each second solenoid valve is opened simultaneously or closed.
Preferably, the first spray head is fixed at the top of the frame of corresponding photovoltaic module by gusset piece, and described
The spray head center line of first spray head is vertical with photovoltaic module surface；
The second spray head is fixed on the frame bottom side of corresponding photovoltaic module, and described second by gusset piece
The spray head center line of spray head is parallel with photovoltaic module surface；
By hose outlet connection corresponding to first distributive pipe, the second spray head passes through soft the first spray head
Manage outlet connection corresponding to second distributive pipe.
Preferably, the lowest position of first distributive pipe and second distributive pipe be also respectively provided with drain valve or
Blow valve；Alternatively, the lowest position of first distributive pipe and second distributive pipe is in parallel, and the water outlet after parallel connection is also
It is provided with drain valve or blow valve；
The drain valve or blow valve according to the control of the control system for opening or closing；
Control system is also used to when environment temperature is lower than preset value, controls the drain valve or blow valve is opened.
Preferably, further includes: water pump and water storage apparatus；
The water outlet of the water pump is connected with the entrance of the water main, and the water sucking mouth of the water pump passes through outlet valve and institute
The outlet pipe for stating water storage apparatus is connected；
The water inlet tube inlet of the water storage apparatus receives water source supply by inlet valve.
Preferably, the water pump is variable frequency pump；
The inlet of the water main is additionally provided with distance-transmission pressure gauge, for sending out the hydraulic pressure detected value in the water main
Sending runs the control system by the water in the water main by controlling the variable frequency pump
Pressure detected value is adjusted to default hydraulic pressure.
Preferably, the water storage apparatus is additionally provided with discharge tube；
The exit of the discharge tube is additionally provided with discharging valve, for playing on or off according to the control of the control system
It closes；
Control system is also used to control the discharging valve when environment temperature is lower than preset value and open.
Preferably, the water inlet pipe exit of the water storage apparatus is additionally provided with ball-cock assembly or liquidometer.
Preferably, the outlet pipe of the water storage apparatus is hose, alternatively, the outlet pipe of the water storage apparatus and the water outlet
It is realized and is connected by flexible joint between valve.
Preferably, further includes: third solenoid valve, for being opened or closed according to the control of the control system；
One end of the third solenoid valve is connected with the entrance of the water main, and the other end receives water source supply.
Photovoltaic plant automatic cleaning system provided by the invention, control system are meeting component cleaning condition or component
When cooling conditions, is opened or closed according to default rule the first solenoid valve of control and second solenoid valve, corresponding distributive pipe can be made
In there are water flows, and then by corresponding spray head realize water spray.It is opened when control system controls the first solenoid valve, makes the first distributive pipe
In there are when water flow, first spray head can pass through water spray and realize flushing for corresponding assembly surface dirt；Even if assembly surface
Dust flows on component bottom frame the residual buildup that part of contaminated water can be generated after with water, also can by control system for
The opening of second solenoid valve controls, and makes in the second distributive pipe that there are water flows, and then realizes second spray head for phase by water spray
The removing on component bottom frame along sewage is answered, solves the problems, such as to clean in the prior art halfway, can be avoided sewage wind
Cause on component bottom frame after dry along component local shades caused by dust accumulation and the influence to entire group string generated energy.
Detailed description of the invention
Technical solution in order to illustrate the embodiments of the present invention more clearly or in the prior art to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, it is only this that interior attached drawing, which is described below,
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 to Fig. 4 is that the part-structure for the photovoltaic plant automatic cleaning system that the present patent application embodiment provides shows respectively
It is intended to；
Fig. 5 is the structure chart for the photovoltaic plant automatic cleaning system that the present patent application embodiment provides；
Fig. 6 is another part structural schematic diagram for the photovoltaic plant automatic cleaning system that the present patent application embodiment provides.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
The present invention provides a kind of photovoltaic plant automatic cleaning system, halfway to solve the problems, such as to clean in the prior art.
Referring to Figure 1 and Fig. 2, the photovoltaic plant automatic cleaning system include: control system (not shown), water main
100, at least the first distributive pipe 101, at least the second distributive pipe 102, at least one first spray head 105 and at least one all the way all the way
A second spray head 106；Wherein:
Water main 100 is provided at least two outlets, is respectively used to the entrance and second point of water of the first distributive pipe 101 of connection
The entrance of pipe 102；When the number of distributive pipe increases, the outlet of water main 100 also increases accordingly.First distributive pipe 101
Inlet is provided with the first solenoid valve 103, for being opened or closed according to the control of control system；Second distributive pipe 102 enters
It is provided with second solenoid valve 104 at mouthful, for opening or closing according to the control of control system.It, can be at this in practical application
Set up several solenoid valves on water main 100 separately, one end of each solenoid valve is connect by screw thread or form of flanges with water main 100,
The same connecting mode of the other end is connect with corresponding distributive pipe.In addition, being also provided with flowmeter or water in the water main 100
Table, to realize the metering for system water amount.
First distributive pipe 101 is provided with the outlet of at least one connection first spray head 105；Second distributive pipe 102 is provided with
The outlet of at least one connection second spray head 106；In practical application, multiple outlets have been can be set in each distributive pipe, to divide
Corresponding spray head is not connected.
First spray head 105 is used to realize the flushing for corresponding assembly surface dirt by water spray；Second spray head 106 is used for
It is realized by water spray for the removing in corresponding assembly bottom frame along sewage.The component bottom frame is finger assembly in a constant inclination
The lower lateral frame positioned at extreme lower position of angle installation；According to component arrangement situation, component long side or component short side frame can be.
The control system is used for when meeting component cleaning condition or component cooling conditions, according to default rule control the
One solenoid valve 103 and second solenoid valve 104 open or close.
It is worth noting that in order to realize flushing for assembly surface dust and on component bottom frame along dirt
The removing of water should design the first solenoid valve 103 and open prior to second solenoid valve 104, for example, it is preferred that by the default rule design
Are as follows: the first solenoid valve 103 opening is first controlled, and controls the closing of the first solenoid valve 103, second solenoid valve after the first duration
104 open；Then second solenoid valve 104 is controlled after the second duration to close；First duration and the second duration can be with
It is configured, and is not specifically limited according to component dust accumulation situation.In addition, in practical application, the first solenoid valve 103 and
There may also be the periods opened simultaneously for two solenoid valves 104, for example, the first solenoid valve 103 and second solenoid valve 104 can be same
When open and/or simultaneously close off, alternatively, the first solenoid valve 103 can also be opened prior to second solenoid valve 104 and/or prior to the
Two solenoid valves 104 are closed or even the first solenoid valve 103 can also be later than second solenoid valve 104 and open but prior to second solenoid valve
104 close, as long as realizing first spray head 105 for phase by water spray by control of the control system for two solenoid valves
After the flushing for answering assembly surface dust, it can be realized by water spray in corresponding assembly bottom frame by second spray head 106
Along the removing of sewage, within the scope of protection of this application.
The photovoltaic plant automatic cleaning system provided in this embodiment, the control by control system for solenoid valve, energy
Enough make in corresponding distributive pipe that there are water flows, and then water spray is realized by corresponding spray head.When control system controls the first solenoid valve 103
It opens, makes there are when water flow in the first distributive pipe 101, first spray head 105 can be realized by water spray for corresponding assembly surface
The flushing of dust；Even if assembly surface dust flows on component bottom frame the delay heap that can generate part of contaminated water after with water
Product can also be controlled by opening of the control system for second solenoid valve 104, be made in the second distributive pipe 102 there are water flow, into
And realize second spray head 106 for the removing in corresponding assembly bottom frame along sewage by water spray；That is, the present embodiment is adopted
With double sprinkler designs, can cleaning assembly superficial dust and cleaning assembly bottom frame dust stratification, component dust is thoroughly cleaned
Completely, solve the problems, such as to clean in the prior art it is halfway, can be avoided sewage air-dry after lead to edge on component bottom frame
Component local shades caused by dust accumulation and the influence to entire group string generated energy.
Also, photovoltaic plant automatic cleaning system provided in this embodiment, according to the control logic in control system, energy
It is enough efficiently and conveniently to carry out automatic water jetting, it can not only realize the cleaning for component, additionally it is possible in the case of assembly high-temperature
Cooling, increase system additional function, realize multifunctional usage.
In addition, the component cleaning condition can the influence according to dust stratification degree to component generated energy be specifically arranged, and
The component cooling conditions can the influence according to temperature for assembly operating be specifically arranged.In practical application, it is more highly preferred to
, the component cleaning condition and component cooling conditions also include: current time belongs to night, and/or, current light degree is lower than
Threshold value.
Night or illumination weaker period is arranged in water spraying time, can reduce influences component generated energy, avoids
Adverse effect of the traditional cleaning formulations to component generated energy.
Setting for two kinds of spray heads can carry out installation connection according to the actual situation, it is preferred that its first spray head 105
It is fixed on by gusset piece at the top of the frame of corresponding photovoltaic module, and the spray head center line of first spray head 105 and photovoltaic group
Part surface is vertical；Specifically, the first spray head 105 can be centrifugal atomizing nozzle, wide-angle solid-cone spray head or rotary nozzle, and
It is not limited to three of the above spray head；And outer diameter≤15mm of the first spray head 105, mounting height are no more than assembly surface
10mm, nozzle are sprayed water vertically upward；In this way, the sprinkling feature of first spray head 105 is made to be to spray vertically upward, water spray forms real
Heart cone cell carrys out simulated rainfall situation, and sprinkling water flow has certain scouring force.
And second spray head 106 is fixed on the frame bottom side of corresponding photovoltaic module, and the second spray by gusset piece
First 106 spray head center line is parallel with photovoltaic module surface, and water spraying direction is parallel with assembly surface, and mounting height is no more than component
Surface 10mm；Specifically, the second spray head 106 can use straight line high-pressure nozzle, straight line high pressure adjustable nozzle, and be not limited to
Upper two kinds of spray heads.
And for coupling between two kinds of spray heads and corresponding distributive pipe, hard tube connecting mode can be used, can also be used
Hose connecting mode；For example, first spray head 105 passes through hose outlet connection corresponding to the first distributive pipe 103, second spray head
106 pass through hose outlet connection corresponding to the second distributive pipe 104.Hose mistake is all made of between two kinds of spray heads and corresponding distributive pipe
Connection is crossed, connecting mode is thread connection.
Two kinds of spray heads directly pass through special joint piece and are connected and fixed with module frame, while dividing water with corresponding by hose
Pipe connection not only ensure that the requirement of spray head installation accuracy, but also reduce difficulty of construction and cost.
Another embodiment of the present invention additionally provides another photovoltaic plant automatic cleaning system, in above-described embodiment and figure
On the basis of 1 and Fig. 2, it is preferred that first distributive pipe 101 and the second distributive pipe 102 are multiple；Only with first in Fig. 3
It is shown for distributive pipe 101.
In practical application, when the first distributive pipe 101 and the second distributive pipe 102 are multiple, each first solenoid valve 103 is same
When open or close, and each second solenoid valve 104 is opened simultaneously or is closed.Alternatively, N number of photovoltaic module can also be shared
The first solenoid valve 103, second solenoid valve 104, first spray head 105 and second spray head 106 form a standard block, N is
Positive integer；And cleaned by each standard block poll of set-up of control system, i.e., in sequence successively to each standard list
Member is cleaned, and opens its first internal electricity respectively according to process described in a upper embodiment when each standard block is cleaned
Magnet valve 103 and second solenoid valve 104.
As shown in figure 4, first solenoid valve 103 and a second solenoid valve 104 can be set, totally two solenoid valves are
One group, form a standard block；In practical application, the area of standard block can be determined according to power station arrangement situation, often
A number of first spray head 105 and second spray head 106 are set in a standard block, be grouped sprinkling washing and cleaning operation use,
Poll embodiment, region carries out component cleaning one by one or cooling operation, i.e. water spray in system between various criterion unit are clear
Operation is washed, independently of each other, is independent of each other, improves system reliability；Also, use poll spray mode, moreover it is possible to reduce water route
Requirement of the system to the element flows such as water supply, water main, pressure parameter, can reduce system cost.
In addition, on the basis of above-mentioned two embodiment, the photovoltaic plant automatic cleaning system, the first distributive pipe
101 and second the lowest position of distributive pipe 102 be also respectively provided with drain valve or blow valve 107, as shown in Figure 2；Alternatively, the
The lowest position of one distributive pipe 101 and the second distributive pipe 102 is in parallel, and the water outlet after parallel connection is additionally provided with drain valve or puts
Empty valve (not illustrated)；When criteria for classifying unit, the drain valve or blow valve also can be set several standard blocks most
Water outlet pipe part after lower is in parallel.
The drain valve or blow valve 107 can be opened or closed according to the control of control system；Correspondingly, control system is also
For when environment temperature is lower than preset value, controlling drain valve or the opening of blow valve 107.
When environment temperature is lower than preset value, by the control of control system, opening drain valve or blow valve can will be clear
Water discharge in wash water road in each water pipe and each element is clean, prevents water pipe at low ambient temperatures or element because water freezing is swollen
It is swollen and damage, have the function of low-temperature protection, improves system environments adaptability and reliability.In practical application, it can also set
It sets and drain valve or blow valve opening is then controlled by control system when not in use for a long time, to protect equipment in water circuit system.
It is worth noting that water main 100 can be set by a solenoid valve and directly receive water source confession in practical application
It answers, i.e., the photovoltaic plant automatic cleaning system is on the basis of above-described embodiment and Fig. 1 to Fig. 4, further includes: third electromagnetism
Valve, for being opened or closed according to the control of control system；One end of third solenoid valve is connected with the entrance of water main 100, separately
One end receives water source supply.
Alternatively, on the basis of above-described embodiment and Fig. 1 to Fig. 4, it is preferred that as shown in Figure 5, further includes: water pump 200
With water storage apparatus 300.
As shown in fig. 6, the water outlet of water pump 200 is connected with the entrance of water main 100, in practical application, between the two may be used
To be provided with flowmeter or water meter 401, to realize the metering for system water amount.
The water sucking mouth of water pump 200 is connected by outlet valve 301 with the outlet pipe 302 of water storage apparatus 300；Preferably, water storage
The outlet pipe 302 of equipment 300 is hose, alternatively, being connect between the outlet pipe 302 and outlet valve 301 of water storage apparatus 300 by flexibility
Head realizes connection.Water storage apparatus 300 is coupled by hose or flexible joint with the water sucking mouth of water pump 200, can be to avoid water pump 200
The vibration that operation generates adversely affects water storage apparatus 300.
304 entrance of water inlet pipe of water storage apparatus 300 receives water source supply by inlet valve 303；In order to fetch water conveniently, water storage
Equipment 300 can be set near water source.
In practical application, water storage apparatus 300 can use water tank or concrete masonry, in addition to setting on water storage apparatus 300
Have except water inlet pipe 304 and outlet pipe 302, its concrete application situation can also be made to be provided with gas vent, overflow pipe, discharge tube
The elements such as 306 and the ball-cock assembly 307 or the liquidometer that are set to 304 exit of water inlet pipe.Wherein, the outlet of discharge tube 306
Place is additionally provided with discharging valve 305, for being opened or closed according to the control of control system；At this point, control system is also used in ring
When border temperature is lower than preset value, control discharging valve 305 is opened.And water storage apparatus 300 may be implemented in ball-cock assembly 307 or liquidometer
Liquid level, meet water storage apparatus 300 and store certain amount water, it is continual and steady to guarantee that water route cleaning system supplies water.
In addition, water pump 200 can also select conventional water pump or variable frequency pump for entire water route according to specific application environment
It supplies water；When water pump 200 is variable frequency pump, the inlet of water main 100 is additionally provided with distance-transmission pressure gauge 402, is used for main water
Hydraulic pressure detected value in pipe 100 is sent to control system, runs control system by water main by controlling variable frequency pump
Hydraulic pressure detected value in 100 is adjusted to default hydraulic pressure, cleaning effect is better achieved.
It is illustrated by taking variable frequency pump as an example, as shown in Figure 3 and Figure 4, which is arranged by component
Cloth situation carries out standard block and divides and arrange, and is configured several standard blocks, every two solenoid valve according to station capacity
(first solenoid valve 103 and a second solenoid valve 104) forms a standard block, then the photovoltaic plant cleans automatically is
The specific cleaning process of system is as follows:
Control system starts, the first solenoid valve 103 and water storage apparatus 300 of control first spray head 105 in standard block 1
Outlet valve 301 is opened, and variable frequency pump run according to default hydraulic pressure, makes pressure fast lifting in water main 100 to presetting
Hydraulic pressure.
First spray head 105 starts to spray water, and water spraying time (the first duration in such as above-described embodiment) can be according to component dust
Accumulation situation is configured；Water is uniformly sprayed onto assembly surface by first spray head 105, and assembly surface dust flows to component with water flow
Outside, while edge can remain the sewage that a part has dust on component bottom frame.
After first spray head 105 is sprayed water, system controls second solenoid valve 104 in standard block 1 and opens, second spray head
106 start to spray water, and the residual sewage on edge in cleaning assembly bottom frame cleans component comprehensively.
After second spray head 106 completes water spray operation in standard block 1, next standard block spray is carried out according to control program
Water operation repeats the above spraying-rinsing step until all standard blocks complete spraying-rinsing operation.
When carrying out various criterion unit spraying-rinsing, system is believed according to the measurement of ball-cock assembly 307 in water storage apparatus 300
Number, the inlet valve 303 of control water storage apparatus 300 opens or closes, and stores certain amount water in water storage apparatus 300 to realize, protects
Card whole system is continuous, stabilization carries out sprinkling washing and cleaning operation.
After the completion of spraying washing and cleaning operation, variable frequency pump stops working, and system closes 303 He of inlet valve of water storage apparatus 300
Outlet valve 301.
The environment temperature that measurement obtains is compared by control system with preset value, if environment temperature is lower than preset value,
Drain valve 107 or blow valve is controlled to open, with all solenoid valves are opened, by system in water pipe, water pump etc. water discharge it is clean,
After the completion of discharging water, all valves are closed in system control；Make the system that there is low temperature antifreeze function, improves system environments adaptation
Ability and application range.
If environment temperature is higher than preset value, control system discharges program without water route, and it is clear to complete entire power station sprinkling
Wash operation.
Remaining structure and principle are same as the previously described embodiments, no longer repeat one by one herein.
Each embodiment is described in a progressive manner in the present invention, the highlights of each of the examples are with other realities
The difference of example is applied, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
Speech, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is referring to method part illustration
?.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form.Though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention.It is any to be familiar with those skilled in the art
Member, without departing from the scope of the technical proposal of the invention, all using the methods and technical content of the disclosure above to the present invention
Technical solution makes many possible changes and modifications or equivalent example modified to equivalent change.Therefore, it is all without departing from
The content of technical solution of the present invention, according to the technical essence of the invention any simple modification made to the above embodiment, equivalent
Variation and modification, all of which are still within the scope of protection of the technical scheme of the invention.
Claims (14)
1. a kind of photovoltaic plant automatic cleaning system characterized by comprising control system, water main, at least all the way first point
Water pipe, at least the second distributive pipe, at least one first spray head and at least one second spray head all the way；Wherein:
The control system is used for when meeting component cleaning condition or component cooling conditions, according to default rule control setting
It is opened or closed in the first solenoid valve on first distributive pipe and the second solenoid valve being set on second distributive pipe；
First distributive pipe is provided at least one outlet for connecting the first spray head；
Second distributive pipe is provided at least one outlet for connecting the second spray head；
The first spray head is used to realize the flushing for corresponding assembly surface dirt by water spray；
The second spray head is used to realize by water spray for the removing in corresponding assembly bottom frame along sewage.
2. photovoltaic plant automatic cleaning system according to claim 1, which is characterized in that the water main is provided at least
Two outlets, are respectively used to connect the entrance of the entrance of first distributive pipe and second distributive pipe；
First solenoid valve is set to the inlet of first distributive pipe, for being opened according to the control of the control system
Or it closes；
The second solenoid valve is set to the inlet of second distributive pipe, for being opened according to the control of the control system
Or it closes.
3. photovoltaic plant automatic cleaning system according to claim 1, which is characterized in that the default rule are as follows: first control
It makes first solenoid valve to open, and controls the first solenoid valve closing, the second solenoid valve after the first duration
It opens；Then the second solenoid valve is controlled after the second duration to close.
4. photovoltaic plant automatic cleaning system according to claim 1, which is characterized in that the component cleaning condition and institute
State component cooling conditions and include: that current time belongs to night, and/or, current light degree is lower than threshold value.
5. photovoltaic plant automatic cleaning system according to claim 1, which is characterized in that first distributive pipe and described
Second distributive pipe is multiple；
First solenoid valve that N number of photovoltaic module shares, the second solenoid valve, the first spray head and described second
One standard block of sprinkler composition, N is positive integer；
Each standard block poll opens first solenoid valve and the second solenoid valve.
6. photovoltaic plant automatic cleaning system according to claim 1, which is characterized in that first distributive pipe and described
Second distributive pipe is multiple；
Each first solenoid valve is opened simultaneously or is closed, and each second solenoid valve is opened simultaneously or closed.
7. photovoltaic plant automatic cleaning system according to claim 1, which is characterized in that the first spray head passes through connection
Plate is fixed at the top of the frame of corresponding photovoltaic module, and the spray head center line of the first spray head and photovoltaic module surface are hung down
Directly；
The second spray head is fixed on the frame bottom side of corresponding photovoltaic module, and the second spray head by gusset piece
Spray head center line it is parallel with photovoltaic module surface；
The first spray head is connected by corresponding to first distributive pipe the outlet of hose, the second spray head pass through hose and
The corresponding outlet of second distributive pipe connects.
8. photovoltaic plant automatic cleaning system according to claim 1, which is characterized in that first distributive pipe and described
The lowest position of second distributive pipe is also respectively provided with drain valve or blow valve；Alternatively, first distributive pipe and described
The lowest position of two distributive pipes is in parallel, and the water outlet after parallel connection is additionally provided with drain valve or blow valve；
The drain valve or blow valve according to the control of the control system for opening or closing；
Control system is also used to when environment temperature is lower than preset value, controls the drain valve or blow valve is opened.
9. -8 any photovoltaic plant automatic cleaning system according to claim 1, which is characterized in that further include: water pump and
Water storage apparatus；
The water outlet of the water pump is connected with the entrance of the water main, and the water sucking mouth of the water pump passes through outlet valve and the storage
The outlet pipe of wetting system is connected；
The water inlet tube inlet of the water storage apparatus receives water source supply by inlet valve.
10. photovoltaic plant automatic cleaning system according to claim 9, which is characterized in that the water pump is variable frequency pump；
The inlet of the water main is additionally provided with distance-transmission pressure gauge, for the hydraulic pressure detected value in the water main to be sent to
The control system runs the control system by the hydraulic pressure inspection in the water main by controlling the variable frequency pump
Measured value is adjusted to default hydraulic pressure.
11. photovoltaic plant automatic cleaning system according to claim 9, which is characterized in that the water storage apparatus is also set up
There is discharge tube；
The exit of the discharge tube is additionally provided with discharging valve, for being opened or closed according to the control of the control system；
Control system is also used to control the discharging valve when environment temperature is lower than preset value and open.
12. photovoltaic plant automatic cleaning system according to claim 9, which is characterized in that the water inlet of the water storage apparatus
Pipe exit is additionally provided with ball-cock assembly or liquidometer.
13. photovoltaic plant automatic cleaning system according to claim 9, which is characterized in that the water outlet of the water storage apparatus
Pipe is hose, is connected alternatively, being realized between the outlet pipe of the water storage apparatus and the outlet valve by flexible joint.
14. -8 any photovoltaic plant automatic cleaning system according to claim 1, which is characterized in that further include: third electricity
Magnet valve, for being opened or closed according to the control of the control system；
One end of the third solenoid valve is connected with the entrance of the water main, and the other end receives water source supply.
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| CN201910072943.8A CN109570117B (en) | 2019-01-25 | 2019-01-25 | Photovoltaic power plant self-cleaning system |
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| CN201910072943.8A CN109570117B (en) | 2019-01-25 | 2019-01-25 | Photovoltaic power plant self-cleaning system |
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