CN108252888A - A kind of photovoltaic water pump system that can increase day water yield - Google Patents
A kind of photovoltaic water pump system that can increase day water yield Download PDFInfo
- Publication number
- CN108252888A CN108252888A CN201711470725.7A CN201711470725A CN108252888A CN 108252888 A CN108252888 A CN 108252888A CN 201711470725 A CN201711470725 A CN 201711470725A CN 108252888 A CN108252888 A CN 108252888A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- valve
- bypass line
- photovoltaic
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/006—Solar operated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
- F04B49/24—Bypassing
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electromagnetic Pumps, Or The Like (AREA)
Abstract
The present invention provides a kind of photovoltaic water pump systems that can increase day water yield,Solve the problems, such as that current photovoltaic water pump system day water yield is low,The system includes photovoltaic cell plate array,Controller,Pump,Outlet pipeline,Start by set date valve,Bypass line and collateral branch's pipeline valve,Start by set date valve is installed on outlet pipeline,One end of bypass line and the outlet of pump,Collateral branch's pipeline valve is installed on bypass line,The pipeline pressure COEFFICIENT K 1 of bypass line is more than the pipeline pressure COEFFICIENT K 2 of outlet pipeline,Start by set date valve and collateral branch's pipeline valve are electrically connected with the controller,Controller is according to intensity of illumination characteristic distributions and system-head curve the control start by set date valve in area and the keying of collateral branch's pipeline valve,So as to change the running operating point of pump,The actual motion lift of raising system,Increase day water yield,So as to improve solar energy utilization ratio,The whole efficiency of raising system.
Description
Technical field
The present invention relates to photovoltaic water lift technical field more particularly to a kind of photovoltaic water pump systems that can increase day water yield
System.
Background technology
The continuous of the traditional energies such as oil, coal is exploited and is endangered using the energy for resulting in the continuous reduction of non-renewable energy
Machine, and the problems such as produce a series of environmental pollutions and greenhouse effects.Therefore, the novel energies such as solar energy, wind energy are by wide
General application, they are inexhaustible, nexhaustible.The operation principle of photovoltaic water pump system is will using the Volta effect that photovoltaic generates
Solar energy is converted into electric energy, then water pump operation is driven to draw water by controller driving motor.Photovoltaic water pump system
It works at sunrise, rest at sunset, it is unattended, have many advantages, such as that low energy consumption, economize on resources, is easy to use, while can effectively reach
To energy saving, water-saving, agriculture volume increase, the purpose increased income, it has also become one of developing direction of following energy-saving and emission-reduction.
In actual motion, the intensity of illumination of morning and dusk are relatively low, and the electric energy power of via controller output at this time is relatively low,
Lead to the rotating speed of water pump operation to reduce, with reference to pump discharge pepeline characteristic, the lift of pump condition point is relatively low at this time, and system reality is not achieved
Lift needed for border, therefore system can not start to draw water.
Invention content
For deficiency exists in the prior art, the present invention provides a kind of photovoltaic water pump systems that can increase day water yield
System with reference to pump discharge pepeline characteristic, by changing the movement operating point of pump, improves the operation lift of water pump, so as to increase photovoltaic
The day water yield of water pump system improves the efficiency of solar energy utilization.
The present invention achieves the above technical objects by the following technical means.
A kind of photovoltaic water pump system that can increase day water yield, including photovoltaic cell plate array, controller, pump, water outlet
Pipeline and start by set date valve, one end of the outlet pipeline and the outlet for connecting pump, the start by set date valve are installed on outlet pipe
On the road, start by set date valve and photovoltaic cell plate array are electrically connected with the controller, which is characterized in that further include bypass line and peace
It is located at start by set date valve and pump loaded on collateral branch's pipeline valve on bypass line, on one end of the bypass line and outlet pipeline
Between pipeline portions connection, the pipeline pressure coefficient of the bypass line is K1, the pipeline pressure coefficient of outlet pipeline is K2, K1
More than K2；
Collateral branch's pipeline valve is electrically connected with the controller, and the controller is according to regional intensity of illumination characteristic distributions and pump
The keying of export pipeline Characteristics Control start by set date valve and collateral branch's pipeline valve.
Preferably, it further includes for the termination of pumping liquid level gauge of height of water level in detecting shaft, the termination of pumping liquid level gauge and controller
Electrical connection.
Preferably, photovoltaic battery panel mounting bracket is further included, the photovoltaic cell plate array is by several monolithic photovoltaic cells
Plate serioparallel forms, and is fixedly installed on stent.
Preferably, the pipe on the other end and outlet pipeline of the bypass line between start by set date valve and cistern
Road connects, and check-valves is also equipped on the bypass line, and collateral branch's pipeline valve is installed on bypass line close to the position of pump
It puts, the check-valves is installed on bypass line close to the position of cistern.
Preferably, cistern is further included, the other end of the outlet pipeline is connected with cistern.
Preferably, it further includes by detecting in cistern based on the reservoir level of height of water level, the reservoir level meter
It is electrically connected with the controller.
Beneficial effects of the present invention：
1) the both ends parallel branch pipeline of start by set date valve of the present invention on outlet pipeline installs collateral branch on bypass line
Pipeline valve and check-valves, it is simple in structure and easy for installation；
2) present invention can be distributed according to the intensity of illumination of different regions controls start by set date valve and collateral branch to manage by controller
The opening and closing of road valve so as to change the running operating point of pump, improves the actual motion lift of system, increases day water yield, so as to carry
High solar utilization rate improves the whole efficiency of system；
3) present invention is transported under anhydrous conditions by setting the water position status in the real-time monitoring well of termination of pumping liquid level gauge to prevent pump
Row, plays a protective role to the motor of pump.
Description of the drawings
Fig. 1 is a kind of structure diagram for the photovoltaic water pump system that can increase day water yield of the present invention.
Fig. 2 is start by set date valve of the present invention and collateral branch's pipeline valve scheme of installation.
Fig. 3 is a kind of operation logic schematic diagram for the photovoltaic water pump system that can increase day water yield of the present invention.
Wherein：
1- photovoltaic cells plate array, 2- photovoltaic battery panels mounting bracket, 3- controllers, 4- pumps, 5- outlet pipelines, 6- timing
Trigger valve, 7- collateral branch pipeline valve, 8- check-valves, 9- cisterns, 10- terminations of pumping liquid level gauge, 11- reservoir levels meter, 12, bypass duct
Road.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is simultaneously
It is without being limited thereto.
A kind of photovoltaic water pump system that can increase day water yield of the present invention includes photovoltaic cell plate array 1, light
Lie prostrate cell plate mounting bracket 2, controller 3, pump 4, outlet pipeline 5, start by set date valve 6, collateral branch's pipeline valve 7, check-valves 8, water storage
Pond 9, termination of pumping liquid level gauge 10, reservoir level meter 11 and bypass line 12.
3 transfer tube 4 of electric energy via controller that photovoltaic cell plate array 1 exports is run, and the water in well is extracted out and passed through by pump 4
Outlet pipeline 5 is delivered to cistern 9, and start by set date valve 6, one end of bypass line 12 and outlet pipe are equipped on outlet pipeline 5
The pipeline portions connection being located on road 5 between start by set date valve 6 and pump 4, the other end and the outlet pipeline 5 of the bypass line 12
The upper pipeline connection between start by set date valve 6 and cistern 9, the pipeline pressure coefficient of bypass line 12 is K1, outlet pipe
The pipeline pressure coefficient on road 5 is K2, K1More than K2。
As shown in Fig. 2, collateral branch's pipeline valve 7 and check-valves 8 are installed on bypass line 12, collateral branch's pipeline valve 7 is installed on branch
Close to the position of pump 4 on road pipeline 12, the check-valves 8 is installed on bypass line 12 close to the position of cistern 9, when timing
Trigger valve 6 is opened, and when collateral branch's pipeline valve 7 is closed, the water adverse current that check-valves 8 is used to prevent in outlet pipeline 5 enters bypass line
On 12.
Controller 3 is according to regional intensity of illumination characteristic distributions and combines pump discharge pepeline characteristic and the operation characteristic pumped,
Control the keying of start by set date valve 6 and collateral branch's pipeline valve 7, start by set date valve 6 is opened during normal operation, and collateral branch's pipeline valve 7 closes
It closes, practical lift meets flow and imports cistern 9, and the intensity of illumination of morning and dusk are relatively low in one day, and via controller 3 is defeated at this time
The electric energy power gone out is relatively low, leads to the rotating speed of 4 operation of pump to reduce, and with reference to pump discharge pepeline characteristic, the operation of operating point at this time is raised
Journey is relatively low, and the actually required lift of system is not achieved, and controller 3 controls start by set date valve 6 to be opened in closing and collateral branch's pipeline valve 7
It opens, improves the lift of system, increase day water yield, so as to improve the efficiency of solar energy utilization, improve the whole efficiency of system.
Termination of pumping liquid level gauge 10 is installed in well, and for the height of water level in detecting shaft, reservoir level meter 11 is installed on storage
The inner wall in pond 9, for detecting the height of water level in cistern 9, termination of pumping liquid level gauge 10 and reservoir level meter 11 with control
Device 3 is electrically connected, when height of water level is less than termination of pumping 10 position of liquid level gauge in well, 10 feedback signal of termination of pumping liquid level gauge to controller 3,
The control pump 4 of controller 3 is out of service, is run under anhydrous conditions to prevent pump 4, plays a protective role to the motor of pump 4, works as water storage
When the height of water reaches the position of reservoir level meter 11 in pond 9,11 feedback signal of reservoir level meter is to controller 3, control
3 control system of device is out of service, in case the water in cistern overflows.
The present invention operation principle be：As shown in figures 1 and 3, start by set date valve 6 is opened during normal operation, collateral branch's pipeline
Valve 7 is closed, and actual motion lift is more than required lift, and the water in well can be evacuated to cistern by pump 4, and flow at this time reaches most
Greatly.With the reduction of intensity of illumination, the rotating speed of 4 operation of pump reduces, bent with reference to flow-lift curve and pump discharge pepeline characteristic
Line, lift and flow are declined, and pump conduit characteristic curve is：
H=HST+KQ2；
In formula, HSTIt is that pump line way outlet and free surface geometric height are poor, K is flowline pressure loss coefficient, and Q is stream
Amount.
When intensity of illumination, which is reduced to pump 4, operates in operating point A, it can just reach actually required lift at this time, at this time
Corresponding illumination intensity value is G1, that is, threshold value of pumping up water is G1.The intensity of illumination of morning and dusk are relatively low in one day, work as intensity of illumination
Less than G1When, with reference to flow-lift curve and pump discharge characteristic curve of pipeline L1, the lift of system is relatively low at this time, and reality is not achieved
Required lift, controller 3 control start by set date valve 6 to close, and collateral branch's pipeline valve 7 is opened, with reference to flow-lift curve and pump discharge
Characteristic curve of pipeline L2, the lift of system is beyond actually required lift, meet demand, when intensity of illumination is reduced to pump operation at this time
In operating point B, it can just reach actually required lift, illumination intensity value at this time is G2.Therefore, when intensity of illumination is in G2
~G1Between when, system can meet actual needs lift.
The operating point that the present invention is run by changing pump 4 improves lift of the system under Low light intensity, increases day water outlet
Amount, so as to improve the efficiency of solar energy utilization, improves the whole efficiency of system.
The embodiment is the preferred embodiments of the present invention, but present invention is not limited to the embodiments described above, not
Away from the present invention substantive content in the case of, those skilled in the art can make it is any it is conspicuously improved, replace
Or modification all belongs to the scope of protection of the present invention.
Claims (6)
1. a kind of photovoltaic water pump system that can increase day water yield, including photovoltaic cell plate array (1), controller (3), pump
(4), outlet pipeline (5) and start by set date valve (6), one end of the outlet pipeline (5) and the outlet for connecting pump (4), it is described fixed
When trigger valve (6) be installed on outlet pipeline (5), start by set date valve (6) and photovoltaic cell plate array (1) with controller (3)
Electrical connection, which is characterized in that the collateral branch's pipeline valve (7) for further including bypass line (12) and being installed on bypass line (12), institute
The pipeline portions for being located at start by set date valve (6) on one end of bypass line (12) and outlet pipeline (5) and pumping between (4) are stated to connect
Logical, the pipeline pressure coefficient of the bypass line (12) is K1, the pipeline pressure coefficient of outlet pipeline (5) is K2, K1More than K2；
Collateral branch's pipeline valve (7) is electrically connected with controller (3), and the controller (3) is distributed special according to the intensity of illumination in area
The keying of operation characteristic control start by set date valve (6) and collateral branch's pipeline valve (7) for putting and combining pump discharge pepeline characteristic and pumping.
2. the photovoltaic water pump system according to claim 1 that day water yield can be increased, which is characterized in that further include and be used for
The termination of pumping liquid level gauge (10) of height of water level in detecting shaft, the termination of pumping liquid level gauge (10) are electrically connected with controller (3).
3. the photovoltaic water pump system according to claim 1 that day water yield can be increased, which is characterized in that further include photovoltaic
Cell plate mounting bracket (2), the photovoltaic cell plate array (1) are made of several monolithic photovoltaic cell plate serioparallels, and fixed
It is installed on stent (2).
4. the photovoltaic water pump system according to claim 1 that day water yield can be increased, which is characterized in that further include water storage
Pond (9), the other end of the outlet pipeline (5) are connected with cistern (9).
5. the photovoltaic water pump system according to claim 1 that day water yield can be increased, which is characterized in that the bypass duct
Pipeline connection on the other end on road (12) and outlet pipeline (5) between start by set date valve (6) and cistern (9), it is described
Check-valves (8) is also equipped on bypass line (12), collateral branch's pipeline valve (7) is installed on bypass line (12) close to pump
(4) position, the check-valves (8) are installed on bypass line (12) close to the position of cistern (9).
6. the photovoltaic water pump system according to claim 4 that day water yield can be increased, which is characterized in that further include and be used for
The reservoir level meter (11) of cistern (9) interior height of water level is detected, the reservoir level meter (11) is electrically connected with controller (3)
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711470725.7A CN108252888A (en) | 2017-12-29 | 2017-12-29 | A kind of photovoltaic water pump system that can increase day water yield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711470725.7A CN108252888A (en) | 2017-12-29 | 2017-12-29 | A kind of photovoltaic water pump system that can increase day water yield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108252888A true CN108252888A (en) | 2018-07-06 |
Family
ID=62725059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711470725.7A Pending CN108252888A (en) | 2017-12-29 | 2017-12-29 | A kind of photovoltaic water pump system that can increase day water yield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108252888A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237207A (en) * | 2020-01-13 | 2020-06-05 | 陕西陕煤铜川矿业有限公司 | Automatic drainage device of water pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19733926A1 (en) * | 1997-08-06 | 1999-02-11 | Bohner Solar Und Sondermaschin | Water pumping device with solar voltaic energy supply |
| CN101109387A (en) * | 2007-08-06 | 2008-01-23 | 中山大学 | Photovoltaic water pump system with hydraulic pressure control function |
| CN202091161U (en) * | 2010-08-02 | 2011-12-28 | 大禹电气科技股份有限公司 | Centralized control type solar photovoltaic water pump system |
| CN103995544A (en) * | 2014-06-13 | 2014-08-20 | 中国农业科学院农田灌溉研究所 | Control device and method for unsteady flow pumping test flow constancy |
| CN206329461U (en) * | 2016-12-21 | 2017-07-14 | 湘西自治州远美节能科技有限公司 | A kind of durable photovoltaic water pump system |
-
2017
- 2017-12-29 CN CN201711470725.7A patent/CN108252888A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19733926A1 (en) * | 1997-08-06 | 1999-02-11 | Bohner Solar Und Sondermaschin | Water pumping device with solar voltaic energy supply |
| CN101109387A (en) * | 2007-08-06 | 2008-01-23 | 中山大学 | Photovoltaic water pump system with hydraulic pressure control function |
| CN202091161U (en) * | 2010-08-02 | 2011-12-28 | 大禹电气科技股份有限公司 | Centralized control type solar photovoltaic water pump system |
| CN103995544A (en) * | 2014-06-13 | 2014-08-20 | 中国农业科学院农田灌溉研究所 | Control device and method for unsteady flow pumping test flow constancy |
| CN206329461U (en) * | 2016-12-21 | 2017-07-14 | 湘西自治州远美节能科技有限公司 | A kind of durable photovoltaic water pump system |
Non-Patent Citations (2)
| Title |
|---|
| 张志光等: "提高水泵出水量的10项措施", 《农业机械》 * |
| 江萍: "《建筑设备自动化》", 31 January 2016 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237207A (en) * | 2020-01-13 | 2020-06-05 | 陕西陕煤铜川矿业有限公司 | Automatic drainage device of water pump |
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Application publication date: 20180706 |