CN211853536U - Photovoltaic module cleaning system - Google Patents
Photovoltaic module cleaning system Download PDFInfo
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- CN211853536U CN211853536U CN202020285529.3U CN202020285529U CN211853536U CN 211853536 U CN211853536 U CN 211853536U CN 202020285529 U CN202020285529 U CN 202020285529U CN 211853536 U CN211853536 U CN 211853536U
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- 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
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Abstract
The utility model discloses a photovoltaic module cleaning system, include the water pump that passes through water piping connection with the water source, with the export of water pump passes through the expansion tank of pipe connection, set up in be used for detecting on the pipeline the manometer of expansion tank actual pressure value, with the manometer and the control circuit that the controlling means of water pump is connected, be provided with water pressure high pressure setting value and water pressure low pressure setting value in the control circuit, control circuit is used for comparing actual pressure value with water pressure high pressure setting value and water pressure low pressure setting value, when actual pressure value is greater than water pressure high pressure setting value, drives the water pump stall; and when the actual pressure value is smaller than the set water pressure low-pressure value, driving the water pump to start. This photovoltaic module cleaning system can provide sufficient and stable water pressure, guarantees safe and reliable's operation.
Description
Technical Field
The utility model relates to a cleaning system technical field especially relates to a photovoltaic module cleaning system.
Background
The distributed photovoltaic system is generally installed on a concrete roof or a color steel tile roof, and the existing cleaning system leads a water outlet pipe from a water supply system to a reserved water outlet of the roof, so that the installation is complicated, and parts are scattered; and partial roofing is because of far away water pressure not enough or water pressure shakiness, when leading to wasing roofing photovoltaic module, the workman consumes long time or can't wash, can't guarantee cleaning system's reliability and convenience, and can't control as required, leads to the water resource serious waste.
To sum up, how to effectively solve the problems of reliability, convenience and the like of a cleaning system which cannot be ensured when a roof photovoltaic module is cleaned is a problem which needs to be solved urgently by technical personnel in the field at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a photovoltaic module cleaning system, this photovoltaic module cleaning system can provide sufficient and stable water pressure, guarantees safe and reliable's operation.
In order to solve the technical problem, the utility model provides a following technical scheme:
a photovoltaic module cleaning system comprises a water pump connected with a water source through a water inlet pipe, an expansion tank connected with an outlet of the water pump through a pipeline, a pressure gauge arranged on the pipeline and used for detecting an actual pressure value of the expansion tank, and a control circuit connected with a control device of the pressure gauge and the water pump, wherein a water pressure high-pressure set value and a water pressure low-pressure set value are arranged in the control circuit,
the control circuit is used for comparing the actual pressure value with the water pressure high-pressure set value and the water pressure low-pressure set value, and driving the water pump to stop running when the actual pressure value is greater than the water pressure high-pressure set value; and when the actual pressure value is smaller than the set water pressure low-pressure value, driving the water pump to start.
Preferably, the control circuit includes the power, with the power is connected and connect in the controlling means's of water pump first branch road, respectively with first branch road parallelly connected second branch road and third branch road, be provided with water injection low pressure device and first auxiliary relay on the second branch road, be provided with water injection high pressure device and second auxiliary relay on the third branch road, water pressure low pressure setting value is preset in the water injection low pressure device, water pressure high pressure setting value is preset in the water injection high pressure device.
Preferably, the control circuit further includes a fourth branch connected in parallel with the first branch, the fourth branch is provided with a change-over switch, a second button having a first port connected to the second end and the fourth end of the change-over switch, an auxiliary contact of the second intermediate relay connected in series with the second port of the second button, an auxiliary contact of the first intermediate relay connected to the first end of the change-over switch at a first joint, a contactor having a first connection part connected in series with the second joint of the auxiliary contact of the first intermediate relay, and an auxiliary contact of the first button and the contactor having a first head connected to the third end of the change-over switch and connected in parallel at a first head, and the second head of the auxiliary contact of the first button and the contactor is connected in series with the first connection part of the contactor.
Preferably, a first signal lamp is connected between the second end and the auxiliary contact of the first intermediate relay.
Preferably, the device further comprises a second signal lamp connected with the contactor in parallel.
Preferably, the control circuit further comprises a fifth branch connected with the first branch in parallel, and a first thermal relay is arranged on the fifth branch.
Preferably, a third signal lamp connected with the first thermal relay in series is arranged on the fifth branch.
Preferably, a second thermal relay is further connected to the second end and the fourth end of the fourth branch; and the first branch is provided with an auxiliary contact of the contactor and a third thermal relay.
Preferably, a main trunk of the control circuit is provided with a main air switch, and trunk roads of the second branch, the third branch, the fourth branch and the fifth branch are provided with a first air switch.
Preferably, a one-way valve is further arranged on the pipeline between the water pump and the pressure gauge, and a pressure release valve and a filter are connected in parallel between the water pump and the outer side of the one-way valve.
The utility model provides a control circuit, including water pump, expansion tank, manometer, control circuit, water pump, expansion tank, manometer, control circuit can integrate in a cupboard, and the installation is simple. The water pump is connected with a water source through a water inlet pipe, and water flows to the water pump after being led out from the water supply system to provide a water source for cleaning the photovoltaic module. The expansion tank is connected with the outlet of the water pump through a pipeline, so that the cleaning water enters the expansion tank, and the water quantity of the expansion tank is maintained at a proper position, namely sufficient and stable water pressure is provided for the cleaning system.
The manometer sets up on the pipeline for detect the actual pressure value of expansion tank. The control circuit is electrically connected with the pressure gauge and the control device of the water pump, and the pressure gauge transmits the actual pressure value of the expansion tank detected by the pressure gauge to the control circuit. A water pressure high-pressure set value and a water pressure low-pressure set value are arranged in the control circuit, the control circuit compares an actual pressure value with the water pressure high-pressure set value and the water pressure low-pressure set value, when the actual pressure value is larger than the water pressure high-pressure set value, the control circuit drives the water pump to stop running, the pressure value of the expansion tank is not too high, and the pressure of the expansion tank is ensured to be in a safety range and is relatively safe; when the actual pressure value is smaller than the set water pressure low-pressure value, the water pump is driven to start to pressurize the cleaning system, and sufficient and stable water pressure is guaranteed.
By applying the technical scheme provided by the embodiment of the utility model, the structure is simple, the whole body is connected with the cleaning spray head, and the installation is easy; can carry out intelligent control to the water pump, can provide sufficient and stable water pressure for cleaning system, guarantee cleaning system safe and reliable's operation, when wasing photovoltaic module, labour saving and time saving washs the facility, washes comparatively totally, rational utilization water resource, resources are saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a photovoltaic module cleaning system according to an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a schematic structural diagram of the control circuit in fig. 1.
The drawings are numbered as follows:
Detailed Description
The core of the utility model is to provide a photovoltaic module cleaning system, this photovoltaic module cleaning system can provide sufficient and stable water pressure, guarantees safe and reliable's operation.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a photovoltaic module cleaning system according to an embodiment of the present invention; FIG. 2 is a top view of FIG. 1; fig. 3 is a schematic structural diagram of the control circuit in fig. 1.
In a specific embodiment, the photovoltaic module cleaning system provided by the utility model comprises a water pump 1 connected with a water source through a water inlet pipe, an expansion tank 2 connected with an outlet of the water pump 1 through a pipeline, a pressure gauge 3 arranged on the pipeline and used for detecting the actual pressure value of the expansion tank 2, and a control circuit connected with the pressure gauge 3 and a control device of the water pump 1, wherein a water pressure high-pressure set value and a water pressure low-pressure set value are arranged in the control circuit,
the control circuit is used for comparing the actual pressure value with the water pressure high-pressure set value and the water pressure low-pressure set value, and driving the water pump 1 to stop running when the actual pressure value is greater than the water pressure high-pressure set value; and when the actual pressure value is smaller than the set water pressure low-pressure value, the water pump 1 is driven to start.
In the structure, the photovoltaic module cleaning system comprises the water pump 1, the expansion tank 2, the pressure gauge 3 and the control circuit, the water pump 1, the expansion tank 2, the pressure gauge 3 and the control circuit can be integrated in a cabinet, and the installation is simple.
The outlet of the expansion tank 2 and the outlet of the water pump 1 are connected through a pipeline, so that the cleaning water enters the expansion tank 2, and the water quantity of the expansion tank 2 is ensured to be maintained at a proper position, namely, sufficient and stable water pressure is provided for the cleaning system.
The pressure gauge 3 is arranged on the pipeline and used for detecting the actual pressure value of the expansion tank 2. The control circuit is electrically connected with the pressure gauge 3 and the control device of the water pump 1, and the pressure gauge 3 transmits the actual pressure value of the expansion tank 2 detected by the pressure gauge 3 to the control circuit.
A water pressure high-pressure set value and a water pressure low-pressure set value are arranged in the control circuit, the control circuit compares an actual pressure value with the water pressure high-pressure set value and the water pressure low-pressure set value, when the actual pressure value is larger than the water pressure high-pressure set value, the control circuit drives the water pump 1 to stop running, the pressure value of the expansion tank 2 is not too high, and the pressure of the expansion tank 2 is ensured to be in a safety range and to be safe; when the actual pressure value is smaller than the set water pressure low-pressure value, the water pump 1 is driven to start to pressurize the cleaning system, and sufficient and stable water pressure is ensured.
By applying the technical scheme provided by the embodiment of the utility model, the structure is simple, the whole body is connected with the cleaning spray head, and the installation is easy; can carry out intelligent control to water pump 1, can provide sufficient and stable water pressure for cleaning system, guarantee cleaning system safe and reliable's operation, when wasing photovoltaic module, labour saving and time saving washs conveniently, washes comparatively totally, rational utilization water resource, resources are saved.
On the basis of the above specific embodiment, the control circuit includes a power supply, a first branch connected with the power supply and connected to the control device of the water pump 1, a second branch and a third branch connected in parallel with the first branch respectively, the second branch is provided with a water injection low-pressure device and a first intermediate relay KA1, the third branch is provided with a water injection high-pressure device and a second intermediate relay KA2, a water pressure low-pressure set value is preset in the water injection low-pressure device, and a water pressure high-pressure set value is preset in the water injection high-pressure device.
In the structure, the control circuit comprises a power supply, a first branch, a second branch and a third branch, the control device of the water pump 1 is connected with the two ends of the power supply through the first branch, the second branch and the third branch are connected with the two ends of the power supply, and the first branch, the second branch and the third branch are connected in parallel.
And a water injection low-pressure device and a first intermediate relay KA1 are arranged on the second branch, and a water pressure low-pressure set value is preset in the water injection low-pressure device. And a water injection high-pressure device and a second intermediate relay KA2 are arranged on the third branch, and a water pressure high-pressure set value is preset in the water injection high-pressure device. And when the automatic control is carried out, the water pressure low-pressure set value and the water pressure high-pressure set value are used as the precondition of the pipeline pressure signal.
When the actual pressure value of the expansion tank 2 detected by the pressure gauge 3 is lower than the set water pressure low pressure value, the low pressure water injection device is switched on, the first intermediate relay KA1 is attracted, the auxiliary contact of the first intermediate relay KA1 is attracted, and the water pump 1 is automatically started; when the actual pressure value of the expansion tank 2 detected by the pressure gauge 3 is higher than the set water pressure low-pressure value, the water injection high-pressure device is switched on, the second intermediate relay KA2 is sucked, the auxiliary contact of the second intermediate relay KA2 is disconnected, and the water pump 1 automatically stops.
The cleaning system is intelligently controlled through the control circuit, so that sufficient and stable water pressure can be provided for the cleaning system, and the safe and reliable operation of the cleaning system is ensured; and control according to the demand, rational utilization water resource.
Further optimize above-mentioned technical scheme, control circuit still includes the fourth branch road parallelly connected with first branch road, be provided with change over switch SA on the fourth branch road, the second button SB2 that the second end and the fourth end of first mouth and change over switch SA are connected, the auxiliary contact of second auxiliary relay KA2 of establishing ties with the second mouth of second button SB2, the auxiliary contact of first auxiliary relay KA1 that first joint is connected with the first end of change over switch SA, contactor KM that first connecting portion and the auxiliary contact second joint of first intermediate relay KA1 establish ties, first button SB1 and the auxiliary contact of contactor KM that first head and the third end of change over switch SA are connected and parallelly connected, the second head of the auxiliary contact of first button SB1 and contactor KM is established ties with the first connecting portion of contactor KM.
In the above structure, the power supply further comprises a fourth branch, two ends of the fourth branch are connected with two ends of the power supply, and the fourth branch is connected with the first branch, the second branch and the third branch in parallel.
The fourth branch is provided with a change-over switch SA, a second button SB2, an auxiliary contact of a second intermediate relay KA2, an auxiliary contact of a first intermediate relay KA1, a contactor KM, an auxiliary contact of a first button SB1 and an auxiliary contact of a contactor KM, the change-over switch SA is provided with a first terminal, a second terminal, a third terminal and a fourth terminal, the second terminal and the fourth terminal are terminals connected in parallel, and the change-over switch SA is provided with two operation positions of an A bit and an M bit.
The second and fourth terminals of the changeover switch SA are connected to the first port of the second push button SB2, the second port of the second push button SB2 is connected in series to the auxiliary contact of the second intermediate relay KA2, and the other end of the auxiliary contact of the second intermediate relay KA2 is connected to one end of the power supply.
The first end of the change-over switch SA is connected with the first joint of the auxiliary contact of the first intermediate relay KA1, the second joint of the auxiliary contact of the first intermediate relay KA1 is connected with the first connecting part of the contactor KM in series, and the second connecting part of the contactor KM is connected with the other end of the power supply.
The third end of the change-over switch SA is connected with the first end of the first button SB1 and the first end of the auxiliary contact of the contactor KM, and the first button SB1 and the auxiliary contact of the contactor KM are connected in parallel behind the third end of the change-over switch SA. The second head of the first button SB1 and the second head of the auxiliary contact of the contactor KM are connected in series with the first connecting part of the contactor KM, and the second connecting part of the contactor KM is connected with the other end of the power supply.
When the change-over switch SA is switched to M position, the on-site control start and stop are carried out; when the A position is reached, the automatic position is adopted, automatic control is carried out, and field start-stop control cannot be carried out.
Specifically, when the water pump 1 needs to be manually controlled on site, the change-over switch SA is turned to M position, the first button SB1 is pressed at the same time, the loop is conducted, the contactor KM is powered on, the auxiliary contact of the contactor KM is changed from a normally open point to a normally closed point, even if the first button SB1 is loosened, the contactor KM is still powered on and the loop is conducted due to the fact that a self-locking loop is formed, and when the pump needs to be stopped, the second button SB2 is pressed, the contactor KM is powered off and the loop is disconnected.
When the water pump 1 needs to be automatically controlled, the change-over switch SA is turned to the position a. When the actual pressure value of the expansion tank 2 detected by the pressure gauge 3 is lower than the set water pressure low pressure value, the low pressure water injection device is switched on, the first intermediate relay KA1 is attracted, the auxiliary contact of the first intermediate relay KA1 is attracted, and the water pump 1 is automatically started; when the actual pressure value of the expansion tank 2 detected by the pressure gauge 3 is higher than the set water pressure low-pressure value, the water injection high-pressure device is switched on, the second intermediate relay KA2 is sucked, the auxiliary contact of the second intermediate relay KA2 is disconnected, and the water pump 1 automatically stops.
The operation component is arranged on the operation panel, the operation panel is arranged on the cabinet, and the outer side of the operation panel is provided with the protective door to prevent water from entering the operation panel.
The starting and stopping of the water pump 1 are controlled through the operation panel and the control circuit, so that not only can automatic control be realized, but also manual control can be realized, the automatic control and the manual control are converted through the conversion switch SA, the switching operation is simple and convenient, and the circuit is simple; the control of the water pump 1 is more convenient, flexible, safer and more reliable.
For the photovoltaic module cleaning system in each embodiment, a first signal lamp HL1 is connected between the second end and the auxiliary contact of the first intermediate relay KA1, when the change-over switch SA is switched to M position, the water pump 1 is manually controlled, and at the moment, the first signal lamp HL1 is turned on; when the change-over switch SA is switched to the A position, the water pump 1 is automatically controlled, and the first signal lamp HL1 is turned off at the moment. The control mode of the water pump 1 is indicated by the on and off of the first signal lamp HL1, so that the working mode of the circuit can be prompted to a worker in real time, and the control mode is clear and visual.
A person skilled in the art can make a number of changes to the above-described specific embodiments according to different specific situations, and further includes a second signal lamp HL2 connected in parallel with the contactor KM, where the second signal lamp HL2 is connected in series after the auxiliary contact of the first intermediate relay KA1, the first button SB1, and the contactor KM, and whether the water pump 1 is automatically controlled to start or the water pump 1 is manually controlled to start, as long as the water pump 1 is started, the second signal lamp HL2 is all on, and prompts that the water pump 1 is normally started. When the second signal lamp HL2 goes out, the water pump 1 is prompted to not normally operate, so that problems can be found and solved in time, and the normal operation of the control circuit is ensured.
In another more reliable embodiment, on the basis of any one of the above embodiments, the control circuit further includes a fifth branch, two ends of the fifth branch are connected to two ends of the power supply, and the fifth branch is connected in parallel to the first branch, the second branch, the third branch, and the fourth branch.
Be provided with first thermorelay KR1 on the fifth branch, when water pump 1 transships, the action of first thermorelay KR1, the normally open contact disconnection of first thermorelay KR1 to make contactor KM lose the electricity, make the control circuit disconnection, control water pump 1's circuit disconnection, water pump 1 stop operation realizes water pump 1's overload protection. The thermal relay is used as an overload protection element, and has the advantages of small volume, simple structure and low cost.
On the basis of the specific embodiment, the fifth branch is provided with a third signal lamp HL3 connected with the first thermal relay KR1 in series, the water pump 1 is not overloaded, under the normal operation state of the control circuit, the lamp of the third signal lamp HL3 is on, when the water pump 1 is overloaded, the control circuit is disconnected, the lamp of the third signal lamp HL3 is turned off, and the worker is prompted that the water pump 1 is overloaded, so that the maintenance and the fault removal are carried out in time.
It should be noted that, the color of first signal lamp HL1, second signal lamp HL2 and third signal lamp HL3 is unrestricted, can be green pilot lamp, also can be red pilot lamp, still can be other better pilot lamps of instruction colour, all is in the protection scope of the utility model. The colors of the first signal lamp HL1, the second signal lamp HL2 and the third signal lamp HL3 may be the same or different, and the specific color may be set according to the specific use condition.
The utility model provides a photovoltaic module cleaning system under the unchangeable condition of other parts, the second end and the fourth end department of fourth branch road still are connected with second thermal relay KR2, and when the components and parts of fourth branch road appeared transshipping, the normally closed contact disconnection of second thermal relay KR2 to make contactor KM lose electricity, make the control circuit disconnection, protect control circuit. And an auxiliary contact of the contactor KM and a third thermal relay KR3 are arranged on the first branch, so that a control device of the water pump 1 is protected.
For the photovoltaic module cleaning systems in the above embodiments, the main trunk of the control circuit is provided with the main air switch Q, the trunk of the second branch, the third branch, the fourth branch and the fifth branch is provided with the first air switch Q1, and the main air switch Q and/or the first air switch Q1 can complete the contact and disconnection of the circuit, control the on-off of the circuit, and protect the circuit. For example, when the current in the circuit exceeds the rated current, the main air switch Q and/or the first air switch Q1 will be automatically turned off; when the short circuit, serious overload, undervoltage and other problems occur to the circuit or the electrical equipment, the main air switch Q and/or the first air switch Q1 can be automatically switched off to protect the circuit.
The utility model provides a photovoltaic module cleaning system under the unchangeable condition of other parts, because water can only follow 1 flow direction expansion tank 2 of water pump, can not be against the current, consequently sets up check valve 4 on the pipeline, and check valve 4 is located between water pump 1 and the manometer 3, prevents that the water of expansion tank 2 from flowing back to water pump 1.
Photovoltaic module washs and finishes, and the surplus water of expansion tank 2 needs discharge and pressure release, consequently sets up relief valve 6 and filter 5 in water pump 1 and the parallelly connected outside of check valve 4, and makes filter 5 be close to in expansion tank 2, and relief valve 6 is close to in water pump 1. That is, from the inlet tube to the pipeline side parallel pipeline, set up filter 5 on the pipeline, filter the water in the pipeline, guarantee that the surplus water can not block up relief valve 6 and water pump 1. Set up relief valve 6 on the pipeline, the water pressure of expansion tank 2 is higher, and relief valve 6 is to the water pressure relief in the pipeline, and the water pressure of guaranteeing to get into the inlet tube is normal, protection water pump 1.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above the utility model provides a photovoltaic module cleaning system and control circuit thereof have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims. Thus, the present invention 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 (10)
1. A photovoltaic module cleaning system is characterized by comprising a water pump (1) connected with a water source through a water inlet pipe, an expansion tank (2) connected with an outlet of the water pump (1) through a pipeline, a pressure gauge (3) arranged on the pipeline and used for detecting the actual pressure value of the expansion tank (2), and a control circuit connected with the pressure gauge (3) and a control device of the water pump (1), wherein a water pressure high-pressure set value and a water pressure low-pressure set value are arranged in the control circuit,
the control circuit is used for comparing the actual pressure value with the water pressure high-pressure set value and the water pressure low-pressure set value, and driving the water pump (1) to stop running when the actual pressure value is greater than the water pressure high-pressure set value; and when the actual pressure value is smaller than the set water pressure low-pressure value, driving the water pump (1) to start.
2. The photovoltaic module cleaning system according to claim 1, wherein the control circuit comprises a power supply, a first branch connected with the power supply and connected to a control device of the water pump (1), a second branch and a third branch connected in parallel with the first branch, respectively, the second branch is provided with a water injection low pressure device and a first intermediate relay (KA1), the third branch is provided with a water injection high pressure device and a second intermediate relay (KA2), the water pressure low pressure setting value is preset in the water injection low pressure device, and the water pressure high pressure setting value is preset in the water injection high pressure device.
3. Photovoltaic module cleaning system according to claim 2, characterized in that the control circuit further comprises a fourth branch connected in parallel to the first branch, on which is provided a diverter Switch (SA), a second push button (SB2) having a first port connected to a second end and a fourth end of the diverter Switch (SA), an auxiliary contact of the second intermediate relay (KA2) connected in series to a second port of a second push button (SB2), an auxiliary contact of a first intermediate relay (KA1) having a first joint connected to a first end of the diverter Switch (SA), a contactor (KM) having a first connection connected in series to an auxiliary contact of the first intermediate relay (KA1) and a second joint of a first intermediate relay (KA1), a first push button (SB1) and an auxiliary contact of a contactor (KM) having a first head connected to a third end of the diverter Switch (SA) and connected in parallel, a second head of the auxiliary contacts of the first push button (SB1) and the contactor (KM) and an auxiliary contact of the contactor (KM) The connection parts are connected in series.
4. The photovoltaic module washing system according to claim 3, characterized in that a first signal lamp (HL1) is connected between the second end and an auxiliary contact of the first intermediate relay (KA 1).
5. The photovoltaic module cleaning system according to claim 3, further comprising a second signal lamp (HL2) connected in parallel with the contactor (KM).
6. The photovoltaic module washing system according to claim 3, wherein the control circuit further comprises a fifth branch connected in parallel with the first branch, and a first thermal relay (KR1) is disposed on the fifth branch.
7. Photovoltaic module washing system according to claim 6, characterized in that a third signal lamp (HL3) is arranged in series with the first thermal relay (KR1) on the fifth branch.
8. The photovoltaic module washing system according to claim 3, wherein a second thermal relay (KR2) is further connected to the second end and the fourth end of the fourth branch; and the first branch is provided with an auxiliary contact of the contactor (KM) and a third thermal relay (KR 3).
9. The photovoltaic module cleaning system according to claim 3, wherein a main air switch (Q) is arranged on a main trunk of the control circuit, and a first air switch (Q1) is arranged on a trunk of the second branch, the third branch, the fourth branch and the fifth branch.
10. The photovoltaic module cleaning system according to any one of claims 1 to 9, wherein a one-way valve (4) is further arranged on the pipeline between the water pump (1) and the pressure gauge (3), and a pressure release valve (6) and a filter (5) are connected in parallel between the water pump (1) and the outside of the one-way valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020285529.3U CN211853536U (en) | 2020-03-10 | 2020-03-10 | Photovoltaic module cleaning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020285529.3U CN211853536U (en) | 2020-03-10 | 2020-03-10 | Photovoltaic module cleaning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211853536U true CN211853536U (en) | 2020-11-03 |
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ID=73133292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020285529.3U Active CN211853536U (en) | 2020-03-10 | 2020-03-10 | Photovoltaic module cleaning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211853536U (en) |
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2020
- 2020-03-10 CN CN202020285529.3U patent/CN211853536U/en active Active
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