CN102313376A - Device and method for controlling auxiliary heat source of solar water heating system to work - Google Patents
Device and method for controlling auxiliary heat source of solar water heating system to work Download PDFInfo
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- CN102313376A CN102313376A CN201110324490A CN201110324490A CN102313376A CN 102313376 A CN102313376 A CN 102313376A CN 201110324490 A CN201110324490 A CN 201110324490A CN 201110324490 A CN201110324490 A CN 201110324490A CN 102313376 A CN102313376 A CN 102313376A
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Abstract
The invention discloses a device and a method for controlling an auxiliary heat source of a solar water heating system to work. The device comprises a solar cell, a current collecting device, a control device, a display device, a setting device and a heat source starting and stopping device, wherein the solar cell receives solar radiation and further generates a current; the current collecting device collects the current of the solar cell; the control device is connected to the current collecting device; the setting device presets the current and time and is connected to the control device; an input end of the heat source starting and stopping device is connected to the control device; and the output end of the heat source starting and stopping device is connected to the auxiliary heat source. By using the device, through comparing the output current of the solar cell collected in real time, a set initial value I and set comparison time t, the control of the auxiliary heat source is achieved, and when the collected output current of the solar cell is more than the set value, and the lasting time is more than the set time t, the auxiliary heat source of the solar water heating system is opened. The auxiliary heat source is opened only when the two comparison results are met synchronously, otherwise, the auxiliary heat source is closed. The device and the method have the advantages that the maximum utilization of the solar efficiency can be achieved, and the energy-saving performance is improved.
Description
Technical field
The present invention relates to solar water heating system, specifically relate to the device of a kind of control solar water heating system auxiliary thermal source work (start and stop).
Background technology
Solar water heating system is combined by collector array, heat storage water tank, auxiliary heating system, intelligence control system, pipeline and the circulatory system, can arbitrarily set out coolant-temperature gage as required, can cooperate the solar water heating system of units such as supply hotel, bath center, school, enterprise with conventional energy resource.
Heat collector is accepted solar radiation, and solar radiant energy is converted into heat energy, heats the water in the heat collector gradually; When the water temperature in the heat collector reaches design temperature, by equipment such as controller control magnetic valve, water pumps, the delivery in the heat collector is stored in the heat storage water tank with heat insulation function automatically, simultaneously that temperature in the water tank is lower water pumps into heat collector.When the difference of heat collector and heat storage water tank water temperature reach setting stop temperature approach the time; Cyclic process stops; When treating that the difference of water temperature and heat storage water tank water temperature reaches to the loop start temperature difference again in the heat collector, system starts cyclic process again, the work that so goes round and begins again.
Overcast and rainy when not having solar radiation or the more weak storage tank temperature of illumination not to reach setting demand temperature, system starts supplementary energy work and heats to storage tank.
Overcast and rainy no solar radiation, system can cooperate hot-water supply with auxiliary energy system.Solar water heating system operation at present mainly is to lean on water level and temperature control, and water tank was intake automatically when promptly water level was lower than the predetermined lower bound water level, automatic auxiliary thermal source when the temperature of water tank is lower than predetermined temperature; There are not the rational and effective control measure can make full use of solar energy; Therefore there is following defective in system, and system gets into and forces to cover the cold water state water tank temperature is reduced when cistern water level is lower than the lower limit water level, even and solar radiation this moment is stronger; Supplementary energy also can be worked; Having caused does not have maximum using solar energy efficient, and auxiliary energy system possibly be heated to the temperature that satisfies the demands with the water tank hot water temperature under sun-drenched situation, causes energy waste.
Summary of the invention
One of technical problem that the present invention will solve provides a kind of maximum using solar energy efficient, improves the device of the control solar water heating system auxiliary thermal source work of energy-saving effect, the use of minimizing supplementary energy.
Two of the technical problem that the present invention will solve provides the method that a kind of device that uses the work of above-mentioned control solar water heating system auxiliary thermal source is controlled auxiliary thermal source.
The present invention adopts following technical scheme one of to solve the problems of the technologies described above: a kind of device of controlling the work of solar water heating system auxiliary thermal source is characterized in that: comprising:
Receive solar radiation and produce the solar cell of electric current;
Gather the current collecting device of the electric current of solar cell;
Be connected to the control device of current collecting device;
Be connected to current collecting device, control device, and the display unit of thermal source start stop apparatus;
To the setting device that electric current and time preset, setting device is connected to control device;
Input is connected to the thermal source start stop apparatus that control device, output are connected to auxiliary thermal source.
The present invention further is specially: solar cell adopts the solar cell of monocrystalline silicon, polysilicon, non-crystalline silicon or composite semiconductor.
Control device is an embedded microcontroller.
Display unit is a LCD.
Setting device is a microcomputer.
The thermal source start stop apparatus is contactor or relay.
The present invention adopt that following technical scheme solves the problems of the technologies described above two: the method that a kind of device that adopts the work of above-mentioned control solar water heating system auxiliary thermal source is controlled auxiliary thermal source comprises the steps:
At step S00, carry out initial setting and deposit control device in through setting device, particularly, Preset Time is set to t, and solar energy can battery output initial current be I0, and preset solar energy output current is I;
Be step S01 then, when solar cell 1 receives the energy from solar radiation, the electric current of real-time solar cell output becomes I1 by I0;
In step S02, control device carries out the first time to the electric current I 1 of solar cell output to be adopted;
In step S03, the control system is with the electric current I 1 of solar cell output in real time and preset solar energy output current I comparison;
In step S04, < during I, then get into step S05 like comparison result I1; Otherwise, I1>and during I, flow process turns back to step S02, and repeating step S02 is to step S04;
In step S05, time t1 that the electric current I 1 of output is lasting always and preset time t compare;
In step S06, at the time t1 that the electric current I 1 of output continues always>under the situation of t, then get into step S07; Otherwise, t1 t, and flow process turns back to step S02, and repeating step S02 is to step S06;
In step S07, under the situation that I1 < I and t1>t all sets up, then control device sends the instruction of starting working through the thermal source start stop apparatus to auxiliary thermal source;
In step S08, current collecting device continues solar cell 1 is carried out the sampling of output current I2, and is transferred in the control device;
In step S09, S10, control device will carry out the comparison of I2 and I, during like comparison result I2 < during I, flow process turns back to step S08, and repeating step S08 is to step S10, as comparison result I2>I, proceed to next step;
In step S11, S12, after control device was compared to the electric current I 2 of solar cell output, comparison result I2 < I is at the lasting always time t2 of output current I2>t then carried out next step; Otherwise, t2 t, and flow process turns back to step S08, and repeating step S08 is to step S12;
In step S013, at I2>I and t2>t all sets up, and then crosses the thermal source start stop apparatus by control device and sends the instruction that quits work to auxiliary thermal source, after auxiliary thermal source quits work, continues to turn back among the step S02, carries out the flow process of repetition.
The invention has the advantages that: receive solar radiation quantity through solar cell and control the work of solar water heating system supplementary energy; Can realize when solar radiation is strong through this device; The control supplementary energy quits work, and supplementary energy could be worked maximum using solar energy efficient when overcast and rainy or solar radiation was weak; Improve energy-saving effect, reduce the supplementary energy environmental pollution.
Description of drawings
Fig. 1 controls the theory diagram of the device of solar water heating system auxiliary thermal source work for the present invention;
Fig. 2 controls the flow chart of the method for solar water heating system auxiliary thermal source work for the present invention;
Fig. 3 is a figure, and the output characteristic curve of solar cell is described under certain solar radiation condition.
The specific embodiment
See also shown in Figure 1ly, the device that the present invention controls the work of solar water heating system auxiliary thermal source comprises:
Receive solar radiation and produce the solar cell 1 of electric current;
Be connected to the current collecting device 2 of solar cell 1, gather the electric current of solar cell 1;
Be connected to the control device 3 of current collecting device 2, will compare through 2 electric current transmitted of current collecting device and setting device 5 preset time and electric currents, and the result that will compare analyzes, correct sending instructed and controlled thermal source start stop apparatus 6;
Real-time duty, parameter are carried out the display unit 4 that digitlization intuitively shows, display unit 4 is connected to current collecting device 2, control device 3, and thermal source start stop apparatus 6;
To the setting device 5 that electric current and time preset, setting device 5 is connected to control device 3;
Input is connected to the thermal source start stop apparatus 6 that control device 3, output are connected to auxiliary thermal source, and opening of sending of control device 3/stop instruction is carried out.
Current collecting device 2 is with the digital form output current signal, and what the size of electric current reflected promptly is the power of solar radiation.
Control device 3 can be an embedded microcontroller, can be equipment such as AVR, MCS51, ARM.
Display unit 4 is display devices of LED, liquid crystal form, directly demonstrates the electric current of real-time solar cell 1 output with digital mode, the working condition of preset time, electric current and thermal source start stop apparatus 6 etc.
Setting device 5 can utilize microcomputer to preset (being made up of CPU, RAM, ROM, output/input device) setting of comparison time and predetermined current.
Thermal source start stop apparatus 6 can be equipment such as contactor, relay, is used to control the switch of auxiliary thermal source.
Referring now to the flow chart of Fig. 2, the method that detailed description uses the device of above-mentioned control solar water heating system auxiliary thermal source work that auxiliary thermal source is controlled.Comprise the steps:
At step S00, carry out initial setting and deposit control device 3 in through setting device 5, particularly, Preset Time is set to t, and solar energy can battery output initial current be I0, and preset solar energy output current is I;
Be step S01 then, when solar cell 1 receives the energy from solar radiation, the electric current of real-time solar cell 1 output becomes I1 by I0;
In step S02, the electric current I 1 of 3 pairs of solar cells of control device, 1 output is carried out the first time and is adopted;
In step S03, control system 3 is with the electric current I 1 of solar cell 1 output in real time and preset solar energy output current I comparison;
In step S04, < during I (I1 < I has become), then get into step S05 like comparison result I1; Otherwise, I1>and during I when I (I1>set up), flow process turns back to step S02, and repeating step S02 is to step S04;
In step S05, time t1 that the electric current I 1 of output is lasting always and preset time t compare;
In step S06, at the time t1 that the electric current I 1 of output continues always>under the situation of t (be t1>t set up), then get into step S07; Otherwise, t1 t (be t1 < t establishment), and flow process turns back to step S02, and repeating step S02 is to step S06;
In step S07, under the situation that I1 < I and t1>t all sets up, then control device 3 sends the instruction of starting working through thermal source start stop apparatus 6 to auxiliary thermal source;
In step S08, current collecting device 2 continues solar cell 1 is carried out the sampling of output current I2, and is transferred in the control device 3;
In step S09, S10, control device 3 will carry out the comparison of I2 and I, like comparison result I2 < during I (I2 < I has become); Flow process turns back to step S08; Repeating step S08 is to step S10, as comparison result I2>during I (I2>I set up), proceed to next step;
In step S11, S12, after the electric current I 2 of 3 pairs of solar cells of control device, 1 output is compared, comparison result I2 < I is at the lasting always time t2 of output current I2>t (be t2>the t establishment), then carry out next step; Otherwise, t2 t (be t2 < t establishment), and flow process turns back to step S08, and repeating step S08 is to step S12;
In step S013, at I2>I and t2>t all sets up, and then crosses thermal source start stop apparatuses 6 by control device 3 and sends the instruction that quits work to auxiliary thermal source, after auxiliary thermal source quits work, continues to turn back among the step S02, carries out the flow process of repetition.
Through the control of above-mentioned process step, can know when solar radiation intensity is more intense, need not to start the hot water auxiliary heating system, only directly heat and get final product through solar thermal collector.During solar radiation weak strength such as overcast and rainy, night; System then starts the load of hot water assistant heating, carries out the assistant heating of hot water, reaches subsequent use purpose; The also maximized solar energy that utilized; Reduced the influence to the hot water demand such as overcast and rainy, night, reduced the utilization rate of load, reasonable auxiliary start stop mode.So the present invention has played great effect in the system of solar water supply such as industrial, civilian.
See also shown in Figure 3; Be directly proportional with the solar radiation amount in view of the electric power Pmax in solar cell maximum electrical force is approximate; So solar radiation is strong more, output current is just big more, explains that at this moment solar energy ability radianting capacity is just strong; Therefore only need utilize solar energy vacuum tube can the domestic hot-water be warmed to proper temperature this moment, not only economy but also energy-conservation.
Though more than described the specific embodiment of the present invention; But the technical staff who is familiar with the present technique field is to be understood that; We described concrete embodiment is illustrative; Rather than being used for qualification to scope of the present invention, those of ordinary skill in the art are in the modification and the variation of the equivalence of doing according to spirit of the present invention, all should be encompassed in the scope that claim of the present invention protects.
Claims (8)
1. device of controlling the work of solar water heating system auxiliary thermal source is characterized in that: comprising:
Receive solar radiation and produce the solar cell of electric current;
Gather the current collecting device of the electric current of solar cell;
Be connected to the control device of current collecting device;
Be connected to current collecting device, control device, and the display unit of thermal source start stop apparatus;
To the setting device that electric current and time preset, setting device is connected to control device;
Input is connected to the thermal source start stop apparatus that control device, output are connected to auxiliary thermal source.
2. the device of control solar water heating system auxiliary thermal source according to claim 1 work is characterized in that: solar cell adopts the solar cell of monocrystalline silicon, polysilicon, non-crystalline silicon or composite semiconductor.
3. the device of control solar water heating system auxiliary thermal source according to claim 1 work, it is characterized in that: control device is an embedded microcontroller.
4. the device of control solar water heating system auxiliary thermal source according to claim 1 work, it is characterized in that: display unit is a LCD.
5. the device of control solar water heating system auxiliary thermal source according to claim 1 work is characterized in that: setting device is a microcomputer.
6. the device of control solar water heating system auxiliary thermal source according to claim 1 work, it is characterized in that: the thermal source start stop apparatus is a contactor.
7. the device of control solar water heating system auxiliary thermal source according to claim 1 work, it is characterized in that: the thermal source start stop apparatus is a relay.
8. the device of an employing such as each described control solar water heating system auxiliary thermal source work of claim 1 to 7 method that auxiliary thermal source is controlled is characterized in that: comprise the steps:
At step S00, carry out initial setting and deposit control device in through setting device, particularly, Preset Time is set to t, and solar energy can battery output initial current be I0, and preset solar energy output current is I;
Be step S01 then, when solar cell 1 receives the energy from solar radiation, the electric current of real-time solar cell output becomes I1 by I0;
In step S02, control device carries out the first time to the electric current I 1 of solar cell output to be adopted;
In step S03, the control system is with the electric current I 1 of solar cell output in real time and preset solar energy output current I comparison;
In step S04, < during I, then get into step S05 like comparison result I1; Otherwise, I1>and during I, flow process turns back to step S02, and repeating step S02 is to step S04;
In step S05, time t1 that the electric current I 1 of output is lasting always and preset time t compare;
In step S06, at the time t1 that the electric current I 1 of output continues always>under the situation of t, then get into step S07; Otherwise, t1 t, and flow process turns back to step S02, and repeating step S02 is to step S06;
In step S07, under the situation that I1 < I and t1>t all sets up, then control device sends the instruction of starting working through the thermal source start stop apparatus to auxiliary thermal source;
In step S08, current collecting device continues solar cell 1 is carried out the sampling of output current I2, and is transferred in the control device;
In step S09, S10, control device will carry out the comparison of I2 and I, during like comparison result I2 < during I, flow process turns back to step S08, and repeating step S08 is to step S10, as comparison result I2>I, proceed to next step;
In step S11, S12, after control device was compared to the electric current I 2 of solar cell output, comparison result I2 < I is at the lasting always time t2 of output current I2>t then carried out next step; Otherwise, t2 t, and flow process turns back to step S08, and repeating step S08 is to step S12;
In step S013, at I2>I and t2>t all sets up, and then crosses the thermal source start stop apparatus by control device and sends the instruction that quits work to auxiliary thermal source, after auxiliary thermal source quits work, continues to turn back among the step S02, carries out the flow process of repetition.
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Citations (7)
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| JPS56119447A (en) * | 1980-02-22 | 1981-09-19 | Aisin Seiki Co Ltd | Solar heatcollector |
| JP2006275363A (en) * | 2005-03-29 | 2006-10-12 | Tokyo Electric Power Co Inc:The | Heat pump water heater |
| CN101261047A (en) * | 2007-03-07 | 2008-09-10 | 刘树强 | Solar heat-collector photoelectric observing and controlling device |
| CN201138077Y (en) * | 2007-12-14 | 2008-10-22 | 嘉兴繁荣电器有限公司 | Solar photoelectric water heating apparatus |
| EP2096363A2 (en) * | 2008-02-26 | 2009-09-02 | Robert Bosch GmbH | Method for operating a solar energy system |
| CN201811451U (en) * | 2010-05-19 | 2011-04-27 | 侯延博 | All-weather seamless conversion system of solar energy plus heat pump water heater |
| CN202274664U (en) * | 2011-10-24 | 2012-06-13 | 安徽郁金香新能源科技有限公司 | Device and method for controlling auxiliary heat source of solar hot water system to work |
-
2011
- 2011-10-24 CN CN201110324490.7A patent/CN102313376B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56119447A (en) * | 1980-02-22 | 1981-09-19 | Aisin Seiki Co Ltd | Solar heatcollector |
| JP2006275363A (en) * | 2005-03-29 | 2006-10-12 | Tokyo Electric Power Co Inc:The | Heat pump water heater |
| CN101261047A (en) * | 2007-03-07 | 2008-09-10 | 刘树强 | Solar heat-collector photoelectric observing and controlling device |
| CN201138077Y (en) * | 2007-12-14 | 2008-10-22 | 嘉兴繁荣电器有限公司 | Solar photoelectric water heating apparatus |
| EP2096363A2 (en) * | 2008-02-26 | 2009-09-02 | Robert Bosch GmbH | Method for operating a solar energy system |
| CN201811451U (en) * | 2010-05-19 | 2011-04-27 | 侯延博 | All-weather seamless conversion system of solar energy plus heat pump water heater |
| CN202274664U (en) * | 2011-10-24 | 2012-06-13 | 安徽郁金香新能源科技有限公司 | Device and method for controlling auxiliary heat source of solar hot water system to work |
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Denomination of invention: Device and method for controlling auxiliary heat source of solar water heating system to work Effective date of registration: 20170607 Granted publication date: 20140716 Pledgee: Han Hua guarantee Anhui branch of Limited by Share Ltd Pledgor: Anhui Tulip New Energy Tech Co.,Ltd. Registration number: 2017340000073 |
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Date of cancellation: 20190312 Granted publication date: 20140716 Pledgee: Hanhua Financing Guarantee Co., Ltd. Anhui Branch Pledgor: Anhui Tulip New Energy Tech Co.,Ltd. Registration number: 2017340000073 |