CN102313376B - 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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- CN102313376B CN102313376B CN201110324490.7A CN201110324490A CN102313376B CN 102313376 B CN102313376 B CN 102313376B CN 201110324490 A CN201110324490 A CN 201110324490A CN 102313376 B CN102313376 B CN 102313376B
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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
- Y02E10/40—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 a kind of device of controlling 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 as required coolant-temperature gage, can coordinate with conventional energy resource the solar water heating system of the units such as supply hotel, bath center, school, enterprise.
Heat collector is accepted solar radiation, and solar radiant energy is converted into heat energy, heats gradually the water in heat collector; In the time that the water temperature in heat collector reaches design temperature, by equipment such as controller control magnetic valve, water pumps, the delivery in heat collector, to having autostore in the heat storage water tank of heat insulation function, is pumped into heat collector by water lower water the temperature inside the box simultaneously.When the difference of heat collector and heat storage water tank water temperature reach setting stop temperature approach time, cyclic process stops, when in heat collector, the difference of water temperature and heat storage water tank water temperature reaches to the loop start temperature difference again, system starts cyclic process again, the work so going round and beginning again.
Overcast and rainy while not having the weak storage tank temperature of solar radiation or illumination not reach setting demand temperature, system starts supplementary energy work and heats to storage tank.
Overcast and rainy without solar radiation, system can coordinate hot-water supply with auxiliary energy system.Solar water heating system operation is at present mainly by water level and temperature control, it is water level water tank automatic feeding water during lower than predetermined lower bound water level, the temperature of water tank auxiliary thermal source automatically during lower than predetermined temperature, rationally effectively control measure can not make full use of solar energy, therefore there is following defect in system, when cistern water level during lower than lower limit water level system enter and force to cover cold water state water tank temperature is reduced, even and now solar radiation is stronger, supplementary energy also can be worked, cause and there is no maximum using solar energy efficiency, in sun-drenched situation, auxiliary energy system may be heated to water tank hot water temperature to satisfy the demands temperature, cause energy waste.
Summary of the invention
One of the technical problem to be solved in the present invention is to provide a kind of maximum using solar energy efficiency, 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 to be solved in the present invention is to provide a kind of method that uses the device of above-mentioned control solar water heating system auxiliary thermal source work to control auxiliary thermal source.
The present invention one of solves the problems of the technologies described above by the following technical solutions: a kind of device of controlling the work of solar water heating system auxiliary thermal source, is characterized in that: comprising:
Receive the solar cell of solar radiation generation 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;
Electric current and time are carried out to default setting device, and setting device is connected to control device;
Input is connected to control device, output and is connected to the thermal source start stop apparatus of auxiliary thermal source.
The present invention is further specially: solar cell adopts the solar cell of monocrystalline silicon, polysilicon, non-crystalline silicon or composite semiconductor.
Control device is embedded microcontroller.
Display unit is liquid crystal display.
Setting device is microcomputer.
Thermal source start stop apparatus is contactor or relay.
The present invention solve the problems of the technologies described above by the following technical solutions two: a kind of method that adopts the device of above-mentioned control solar water heating system auxiliary thermal source work to control auxiliary thermal source, comprise the steps:
At step S00, carry out initial setting and deposit control device in by setting device, particularly, Preset Time is set to t, and solar energy energy battery output initial current is I0, and default solar energy output current is I;
Then be step S01, when solar cell 1 receives the energy from solar radiation, the electric current of real-time solar cell output becomes I1 from I0;
In step S02, control device adopts for the first time to the electric current I 1 of solar cell output;
In step S03, control system is compared the electric current I 1 of solar cell output in real time with default solar energy output current I;
In step S04, during as comparison result I1<I, enter step S05; Otherwise when I1>I, flow process turns back to step S02, repeating step S02 is to step S04;
In step S05, the time t1 that the electric current I of output 1 is continued always and default time t compare;
In step S06, the time t1>t always continuing in the electric current I 1 of output, enter step S07; Otherwise, t1<t, flow process turns back to step S02, and repeating step S02 is to step S06;
In step S07, in the situation that I1<I and t1>t all set up, control device sends to auxiliary thermal source the instruction of starting working by thermal source start stop apparatus;
In step S08, current collecting device continues solar cell 1 to carry out the sampling of output current I2, and is transferred in control device;
In step S09, S10, control device will carry out comparing of I2 and I, and during as comparison result I2<I, flow process turns back to step S08, and repeating step S08, to step S10, in the time of comparison result I2>I, proceeds to next step;
In step S11, S12, after control device is compared to the electric current I 2 of solar cell output, comparison result I2<I, the time t2>t always continuing at output current I2, carries out next step; Otherwise, t2<t, flow process turns back to step S08, and repeating step S08 is to step S12;
In step S013, all set up at I2>I and t2>t, cross thermal source start stop apparatus by control device and send to auxiliary thermal source the instruction that quits work, after auxiliary thermal source quits work, continue to turn back in step S02, carry out the flow process of repetition.
The invention has the advantages that: receive solar radiation quantity by solar cell and control the work of solar water heating system supplementary energy, can realize in the time that solar radiation is stronger by this device, control supplementary energy quits work, when overcast and rainy or solar radiation is weak, supplementary energy could be worked, maximum using solar energy efficiency, improve energy-saving effect, reduce supplementary energy environmental pollution.
Brief description of the drawings
Fig. 1 is the theory diagram of the device of control solar water heating system auxiliary thermal source of the present invention work;
Fig. 2 is the flow chart of the method for control solar water heating system auxiliary thermal source of the present invention work;
Fig. 3 is a figure, and the output characteristic curve of solar cell is described under certain solar radiation condition.
Detailed description of the invention
Refer to shown in Fig. 1, the device of control solar water heating system auxiliary thermal source of the present invention work comprises:
Receive the solar cell 1 of solar radiation generation 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, the electric current transmitting and default time and the electric current of setting device 5 compared, and the result of comparison is analyzed by current collecting device 2, the correct instruction of sending carrys out control of heat source start stop apparatus 6;
Real-time duty, parameter are carried out to 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;
Electric current and time are carried out to default setting device 5, and setting device 5 is connected to control device 3;
Input is connected to control device 3, output and is connected to the thermal source start stop apparatus 6 of auxiliary thermal source, and the open/stop instruction that control device 3 is sent is carried out.
Solar cell 1 adopts the solar cell of the various ways of monocrystalline silicon, polysilicon, non-crystalline silicon or composite semiconductor.
Current collecting device 2 is with digital form output current signal, and what the size of electric current reflected is the power of solar radiation.
Control device 3 can be embedded microcontroller, can be the equipment such as AVR, MCS51, ARM.
Display unit 4 is display devices of LED, liquid crystal form, directly demonstrates in digital mode the electric current that real-time solar cell 1 is exported, the working condition of default 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 the equipment such as contactor, relay, for controlling the switch of auxiliary thermal source.
Referring now to the flow chart of Fig. 2, describe the method that uses the device of above-mentioned control solar water heating system auxiliary thermal source work to control auxiliary thermal source in detail.Comprise the steps:
At step S00, carry out initial setting and deposit control device 3 in by setting device 5, particularly, Preset Time is set to t, and solar energy energy battery output initial current is I0, and default solar energy output current is I;
Then be step S01, when solar cell 1 receives the energy from solar radiation, the electric current that real-time solar cell 1 is exported becomes I1 from I0;
In step S02, the electric current I 1 that control device 3 is exported solar cell 1 adopts for the first time;
In step S03, control system 3 is compared the electric current I 1 of solar cell 1 output in real time with default solar energy output current I;
In step S04, during as comparison result I1<I (I1<I has become), enter step S05; Otherwise, when I1>I, (when I1>I, to set up), flow process turns back to step S02, and repeating step S02 is to step S04;
In step S05, the time t1 that the electric current I of output 1 is continued always and default time t compare;
In step S06, the time t1>t(always continuing in the electric current I 1 of output is that t1>t sets up), step S07 entered; Otherwise t1<t(is that t1<t sets up), flow process turns back to step S02, and repeating step S02 is to step S06;
In step S07, in the situation that I1<I and t1>t all set up, control device 3 sends to auxiliary thermal source the instruction of starting working by thermal source start stop apparatus 6;
In step S08, current collecting device 2 continues solar cell 1 to carry out the sampling of output current I2, and is transferred in control device 3;
In step S09, S10, control device 3 will carry out comparing of I2 and I, during as comparison result I2<I (I2<I has become), flow process turns back to step S08, repeating step S08 is to step S10, in the time of comparison result I2>I, (I2>I establishment), proceeds to next step;
In step S11, S12, after the electric current I 2 that control device 3 is exported solar cell 1 is compared, comparison result I2<I, the time t2>t(always continuing at output current I2 is that t2>t sets up), carry out next step; Otherwise t2<t(is that t2<t sets up), flow process turns back to step S08, and repeating step S08 is to step S12;
In step S013, all set up at I2>I and t2>t, cross thermal source start stop apparatus 6 by control device 3 and send to auxiliary thermal source the instruction that quits work, after auxiliary thermal source quits work, continue to turn back in step S02, carry out the flow process of repetition.
By the control of above-mentioned process step, when known solar radiation intensity is more intense, without starting hot water auxiliary heating system, only directly heat by solar thermal collector.When the solar radiation weak strength such as overcast and rainy, night, system starts the load of hot water auxiliary heating, carry out the auxiliary heating of hot water, reach object for subsequent use, also the maximized solar energy that utilized, reduce the impact on 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 the solar water supply such as industrial, civilian.
Refer to shown in Fig. 3, in view of being similar to, the electric power Pmax of solar cell maximum power point is directly proportional to solar radiation amount, so solar radiation is stronger, output current is just larger, at this moment illustrate that solar energy energy radianting capacity is just strong, therefore now only need to utilize solar energy vacuum tube domestic hot-water can be warmed to proper temperature, not only economy but also energy-conservation.
Although more than described the specific embodiment of the present invention; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; instead of for the restriction to scope of the present invention; those of ordinary skill in the art are in equivalent modification and the variation done according to spirit of the present invention, all should be encompassed in the scope that claim of the present invention protects.
Claims (8)
1. a device of controlling the work of solar water heating system auxiliary thermal source, is characterized in that: comprising:
Receive the solar cell of solar radiation generation 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;
Electric current and time are carried out to default setting device, and setting device is connected to control device;
Input is connected to control device, output and is connected to the thermal source start stop apparatus of 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, is characterized in that: control device is embedded microcontroller.
4. the device of control solar water heating system auxiliary thermal source according to claim 1 work, is characterized in that: display unit is liquid crystal display.
5. the device of control solar water heating system auxiliary thermal source according to claim 1 work, is characterized in that: setting device is microcomputer.
6. the device of control solar water heating system auxiliary thermal source according to claim 1 work, is characterized in that: thermal source start stop apparatus is contactor.
7. the device of control solar water heating system auxiliary thermal source according to claim 1 work, is characterized in that: thermal source start stop apparatus is relay.
8. the method that the device of the control solar water heating system auxiliary thermal source work of employing as described in claim 1 to 7 any one is controlled auxiliary thermal source, is characterized in that: comprise the steps:
At step S00, carry out initial setting and deposit control device in by setting device, particularly, Preset Time is set to t, and solar cell output initial current is I0, and default solar energy output current is I;
Then be step S01, when solar cell 1 receives the energy from solar radiation, the electric current of real-time solar cell output becomes I1 from I0;
In step S02, current collecting device adopts for the first time to the electric current I 1 of solar cell output;
In step S03, control device is compared the electric current I 1 of solar cell output in real time with default solar energy output current I;
In step S04, during as comparison result I1<I, enter step S05; Otherwise when I1>I, flow process turns back to step S02, repeating step S02 is to step S04;
In step S05, the time t1 that the electric current I of output 1 is continued always and default time t compare;
In step S06, the time t1>t always continuing in the electric current I 1 of output, enter step S07; Otherwise, t1<t, flow process turns back to step S02, and repeating step S02 is to step S06;
In step S07, in the situation that I1<I and t1>t all set up, control device sends to auxiliary thermal source the instruction of starting working by thermal source start stop apparatus;
In step S08, current collecting device continues solar cell 1 to carry out the sampling of output current I2, and is transferred in control device;
In step S09, S10, control device will carry out comparing of I2 and I, and during as comparison result I2<I, flow process turns back to step S08, and repeating step S08, to step S10, in the time of comparison result I2>I, proceeds to next step;
In step S11, S12, after control device is compared with default solar energy output current I to the electric current I 2 of solar cell output, comparison result I2<I, the time t2>t always continuing at output current I2, carries out next step; Otherwise, t2<t, flow process turns back to step S08, and repeating step S08 is to step S12;
In step S013, all set up at I2>I and t2>t, send to auxiliary thermal source the instruction that quits work by thermal source start stop apparatus by control device, after auxiliary thermal source quits work, continue to turn back in step S02, carry out the flow process of repetition.
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| CN201110324490.7A CN102313376B (en) | 2011-10-24 | 2011-10-24 | Device and method for controlling auxiliary heat source of solar water heating system to work |
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| 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 |
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| 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 |
Family Cites Families (2)
| 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 |
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- 2011-10-24 CN CN201110324490.7A patent/CN102313376B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Non-Patent Citations (2)
| Title |
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| JP昭56-119447A 1981.09.19 |
| JP特开2006-275363A 2006.10.12 |
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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 |