CN203533904U - Photovoltaic direct current forced circulation solar water heater - Google Patents
Photovoltaic direct current forced circulation solar water heater Download PDFInfo
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- CN203533904U CN203533904U CN201320558426.XU CN201320558426U CN203533904U CN 203533904 U CN203533904 U CN 203533904U CN 201320558426 U CN201320558426 U CN 201320558426U CN 203533904 U CN203533904 U CN 203533904U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 238000005338 heat storage Methods 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000000052 comparative effect Effects 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000007710 freezing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000009172 bursting Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000007605 air drying Methods 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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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
- Y02E10/44—Heat exchange systems
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model discloses a photovoltaic direct current forced circulation solar water heater designs for solving current solar water heater energy consumption big, the complicated scheduling problem of structure. The photovoltaic direct-current forced circulation solar water heater comprises a solar heat collector and a heat storage water tank which are connected through a circulation heat transfer pipeline, wherein a circulation pump is connected in series on the circulation heat transfer pipeline, the circulation pump is electrically connected with a photovoltaic module through a detection control device, and when the detection control device detects that the solar irradiance value is larger than or equal to a set value, the circulation pump is started. The photovoltaic direct-current forced circulation solar water heater is energy-saving, environment-friendly, simple in structure, high in accuracy, low in failure rate and low in noise.
Description
Technical field
The utility model relates to field of water heaters, more specifically, relates to a kind of photovoltaic DC forced circulation solar water heater.
Background technology
The thermal-arrest working medium circulation mode of solar water heater mainly contains two kinds of Natural Circulation and forced circulation.The heat exchange efficiency of natural circulation mode is low, and heats inhomogeneous; And forced circulation heat exchange efficiency is high, heat storage water tank placement location is unrestricted, but its control system complex structure, and be mains-supplied, poor reliability.If user forgets, insert water heater power supply plug, cannot, by the transfer of heat in solar thermal collector to heat storage water tank, cause the air drying of solar thermal collector simultaneously; When sunlight is inadequate or at dusk, if the temperature of solar thermal collector lower than the temperature of water in heat storage water tank, at this moment circulating pump is still in operation, the thermal release that heat storage water tank will be stored be gone out.
At present, known forced circulation solar water heater circulating pump adopts ac pump, mains-supplied, and power is larger, and energy consumption is high, and noise is large.Also there is in addition the solar water heater to circulating pump power supply by photovoltaic module, system configuration battery, or adopt MPPT maximum power point tracking MPPT control technology, light-operated switch and temperature detect switch (TDS) controlled circulation pump technology, these scenario-frames are complicated, and expensive.
Utility model content
The photovoltaic DC forced circulation solar water heater that an object of the present utility model is a kind of energy-conserving and environment-protective of proposition, simple in structure, accuracy is high;
The photovoltaic DC forced circulation solar water heater that another object of the present utility model is a kind of failure rate is low of proposition, noise is low;
An also object of the present utility model is to propose a kind of photovoltaic DC forced circulation solar water heater with antifreeze function, reliable in structure.
For reaching this object, the technical solution of the utility model is:
A kind of photovoltaic DC forced circulation solar water heater, comprise the solar thermal collector and the heat storage water tank that by circulating heat transfer pipeline, connect, on described circulating heat transfer pipeline, be serially connected with circulating pump, described circulating pump after testing control device is electrically connected to photovoltaic module, starts described circulating pump when described detection control apparatus detection solar irradiance value is more than or equal to setting value.
Preferably, described detection control apparatus comprises current acquisition module, controller and driver module, wherein,
Current acquisition module, for detecting in real time the current value of photovoltaic module output;
Controller, for current value is converted into current solar irradiance value according to linear relationship, and compares current solar irradiance value and preset solar irradiance threshold value, according to comparative result, to driver module, sends corresponding signal;
Driver module, is delivered to circulating pump for the electric current that photovoltaic module is produced.
Preferably, described detection control apparatus comprises solar irradiance tester, controller and driver module, wherein,
Solar irradiance tester, for detecting in real time current solar irradiance value;
Controller, for by described current solar irradiance value and the solar irradiance threshold comparison prestoring, sends corresponding signal according to comparative result to driver module;
Driver module, is delivered to circulating pump for the electric current that photovoltaic module is produced.
Preferably, described solar irradiance threshold value is 300W/m
2.
Preferably, described detection control apparatus also comprises delay timer, and described delay timer is connected with controller.
Preferably, described circulating pump is brushless dc pump.
Preferably, described circulating pump is the brushless dc pump of zero start electric current, wide voltage power supply scope.
Preferably, described solar thermal collector be installed on same plane with described photovoltaic module and angle of inclination identical.
Preferably, described circulating pump and circulating heat transfer pipeline are installed on the bottom of described heat storage water tank.
Preferably, in the middle of described heat storage water tank, be water space, outer wall sandwich establishment space, is filled with anti-icing fluid in mezzanine space, and described circulating pump drives described anti-icing fluid to carry out heat exchange through circulating heat transfer pipeline and solar thermal collector, with the water heating in water space.
The beneficial effects of the utility model are:
(1) the photovoltaic DC forced circulation solar water heater the utility model proposes, by photovoltaic module, to circulating pump, powered, the power output of photovoltaic module changes with the variation of intensity of illumination, the rotating speed of circulating pump also changes thereupon, thereby the flow of the circulatory mediator in controlled circulation heat transfer, by the opening and closing of the direct controlled circulation pump of solar irradiance, when being less than threshold value, solar irradiance stops circulation, can maximally utilise solar energy like this, can effectively prevent the loss of store heat in water tank again, simple in structure, energy-conserving and environment-protective, accuracy and security are higher,
(2) circulating pump adopts the brushless direct-current circulating pump of zero start electric current, change, and brushless direct-current circulating pump operating voltage range is wide without the direct current that photovoltaic module is produced, and safe and reliable, power consumption is little, and noise is low;
(3) on detection control apparatus, be also provided with delay timer, when solar irradiance is less than threshold value, need delay timer time delay certain hour, if solar irradiance is still less than threshold value, circulating pump is out of service, otherwise circulating pump continuous service, avoids the normal operation of the concealment interference effect solar water heater of short time, make to solar water heater to add thermal control more accurately reliable;
(4) by circulation anti-freezing liquid, the water in heat storage water tank is heated, can avoid the thermal medium in pipeline freeze and cause pipeline bursting by freezing, and the coolant-temperature gage in heat storage water tank is balanced, effectively improves comfort.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment mono-photovoltaic DC forced circulation solar water heater;
Fig. 2 is the structural representation of the utility model embodiment bis-photovoltaic DC forced circulation solar water heaters;
Fig. 3 is the structural representation of the utility model embodiment tri-photovoltaic DC forced circulation solar water heaters;
Fig. 4 is the structural representation of the utility model embodiment tetra-photovoltaic DC forced circulation solar water heaters.
In figure:
1, solar thermal collector; 2, heat storage water tank; 21, water space; 22, mezzanine space; 3, circulating heat transfer pipeline; 4, brushless dc pump; 5, detection control apparatus; 51, current acquisition module; 52, controller; 53, driver module; 54, solar irradiance tester; 55, delay timer; 6, photovoltaic module.
The specific embodiment
Below in conjunction with accompanying drawing and by the specific embodiment, further illustrate the technical solution of the utility model.
Embodiment mono-:
Fig. 1 is the structural representation of the present embodiment photovoltaic DC forced circulation solar water heater.As shown in the figure, this solar water heater comprises solar thermal collector 1 and heat storage water tank 2, solar thermal collector 1 is connected by circulating heat transfer pipeline 3 with heat storage water tank 2, on circulating heat transfer pipeline 3, be serially connected with the brushless dc pump 4 of zero start electric current, brushless dc pump 4 after testing control device 5 is electrically connected to photovoltaic module 6, and brushless dc pump 4 is wide voltage power supply scope, its operating voltage range is 6VDC-24VDC, safe and reliable, power consumption is little, and noise is low.By photovoltaic module 6, by the light energy conversion of reception, be 4 operations of DC powered brushless dc pump.
Because the solar irradiance current value that photovoltaic module produces under irradiation level is therewith substantially linear, the current value that therefore photovoltaic module 6 can be produced be converted into solar irradiance value.Solar thermal collector 1 be installed on same plane with photovoltaic module 6 and angle of inclination identical, the solar irradiance that solar thermal collector 1 and photovoltaic module 6 accepted is unified, and the current value that the photovoltaic module 6 of guaranteeing to detect produces can accurately embody the solar irradiance that solar thermal collector 1 is accepted.
The course of work of above-mentioned solar water heater is: in controller, preset the linear conversion relation of solar irradiance threshold value and photovoltaic module output current and solar irradiance, solar irradiance threshold value is 300W/m2.Photovoltaic module is exported direct current under the irradiation of the sun, current acquisition module detects the electric current of photovoltaic module output in real time, electric current is converted, amplify, and transfer to controller, controller is converted into current solar irradiance value according to linear conversion relation by current value, and this current solar irradiance value and preset solar irradiance threshold value are compared, when current solar irradiance value is more than or equal to solar irradiance threshold value, controller sends signal to driver module, the electric current that driver module is produced photovoltaic module is delivered to brushless dc pump, make brushless direct-current pump operation, water in heat storage water tank is constantly carried out to heat exchange through circulating heat transfer pipeline and solar thermal collector, thereby by the water heating in heat storage water tank, when current solar irradiance value is less than solar irradiance threshold value, controller is controlled the operation that driver module stops driving brushless dc pump.
The power output of photovoltaic module changes with the variation of intensity of illumination, the rotating speed of brushless dc pump also changes thereupon, thereby the flow of the water in controlled circulation heat transfer, can either utilize solar energy so to greatest extent, can effectively prevent again the loss of store heat in water tank.
Brushless dc pump 4 and circulating heat transfer pipeline 3 are arranged at the bottom of heat storage water tank 2, the interior hot water proportion after heating of heat storage water tank 2 is little, flowed, and cold water is larger under thermal siphon pressure by lower end to upper end, be easy to flow to lower end, and be driven into circulating heat transfer pipeline 3 by brushless dc pump 4.This setting can improve the heat exchange efficiency in heat storage water tank 2, makes the water homogeneous heating of heat storage water tank 2.
Embodiment bis-:
The basic structure of the photovoltaic DC forced circulation solar water heater of the present embodiment is identical with embodiment mono-, as shown in Figure 2, comprise solar thermal collector 1 and heat storage water tank 2, solar thermal collector 1 is connected by circulating heat transfer pipeline 3 with heat storage water tank 2, on circulating heat transfer pipeline 3, be serially connected with brushless dc pump 4, brushless dc pump 4 after testing control device 5 is electrically connected to photovoltaic module 6, by photovoltaic module 6, by the light energy conversion of reception, is 4 operations of DC powered brushless dc pump.Described detection control apparatus 5 comprises current acquisition module 51, controller 52 and driver module 53.
Be with the difference of embodiment mono-, in the middle of the heat storage water tank 2 of the present embodiment, it is water space 21, outer wall sandwich establishment space 22, in mezzanine space 22, be filled with anti-icing fluid, described anti-icing fluid is drawn by brushless dc pump 4, through circulating heat transfer pipeline 3 and solar thermal collector 1, carry out returning to mezzanine space 22 after heat exchange, and further heat the water in water space 21 by tank wall.
By circulation anti-freezing liquid, the water in heat storage water tank is heated, can avoid the thermal medium in pipeline freeze and cause pipeline bursting by freezing, and the coolant-temperature gage in heat storage water tank is balanced, effectively improves comfort.
Embodiment tri-:
As shown in Figure 3, the basic structure of the photovoltaic DC forced circulation solar water heater of the present embodiment is identical with embodiment mono-, comprise solar thermal collector 1 and heat storage water tank 2, solar thermal collector 1 is connected by circulating heat transfer pipeline 3 with heat storage water tank 2, on circulating heat transfer pipeline 3, be serially connected with brushless dc pump 4, brushless dc pump 4 after testing control device 5 is electrically connected to photovoltaic module 6, by photovoltaic module 6, by the light energy conversion of reception, is 4 operations of DC powered brushless dc pump
Be with the difference of embodiment mono-, the detection control apparatus 5 of the present embodiment comprises solar irradiance tester 54, controller 52 and driver module 53.Wherein, solar irradiance tester 54 is for detecting in real time current solar irradiance value; Controller 52, for by described current solar irradiance value and the solar irradiance threshold comparison prestoring, sends corresponding signal according to comparative result to driver module 53; Driver module 53 is delivered to brushless dc pump 4 for the electric current that photovoltaic module 6 is produced.
The course of work of above-mentioned solar water heater is: in controller, preset solar irradiance threshold value is 300W/m
2.Photovoltaic module is exported direct current under the irradiation of the sun, current acquisition module detects the electric current of photovoltaic module output in real time, solar irradiance tester detects in real time current solar irradiance value and transfers to controller, controller is by described current solar irradiance value and the solar irradiance threshold comparison prestoring, when current solar irradiance value is more than or equal to solar irradiance threshold value, controller sends signal to driver module, and the electric current that driver module is produced photovoltaic module is delivered to brushless dc pump; When current solar irradiance value is less than solar irradiance threshold value, controller is controlled driver module and is stopped carrying electric current to brushless dc pump.
The present embodiment is detected and is directly obtained current solar irradiance value by solar irradiance tester, can judge more exactly whether current solar irradiation intensity needs to carry out water circulation heating, controls more accurately reliable.
Embodiment tetra-:
The basic structure of the photovoltaic DC forced circulation solar water heater of the present embodiment is identical with embodiment mono-, comprise solar thermal collector 1 and heat storage water tank 2, solar thermal collector 1 is connected by circulating heat transfer pipeline 3 with heat storage water tank 2, on circulating heat transfer pipeline 3, be serially connected with brushless dc pump 4, brushless dc pump 4 after testing control device 5 is electrically connected to photovoltaic module 6, by photovoltaic module 6, by the light energy conversion of reception, is 4 operations of DC powered brushless dc pump.Described detection control apparatus 5 comprises current acquisition module 51, controller 52 and driver module 53.
Be with the difference of embodiment mono-, on the controller 52 of the present embodiment, be also connected with delay timer 55, in controller 52, preset delay time T, when the current solar irradiance value detecting is less than solar irradiance threshold value, delay timer 55 starts timing, as elapsed time T, the current solar irradiance value detecting is still less than solar irradiance threshold value, controller 52 control driver modules 53 stop driving the operation of brushless dc pump 4, otherwise still drive 4 pairs of water of brushless dc pump to carry out circulating-heating.
The setting of delay timer can be avoided the normal operation of the concealment interference effect solar water heater of short time, make to solar water heater to add thermal control more accurately reliable.
Know-why of the present utility model has below been described in conjunction with specific embodiments.These are described is in order to explain principle of the present utility model, and can not be interpreted as by any way the restriction to the utility model protection domain.Explanation based on herein, those skilled in the art does not need to pay performing creative labour can associate other specific embodiment of the present utility model, within these modes all will fall into protection domain of the present utility model.
Claims (10)
1. a photovoltaic DC forced circulation solar water heater, comprise the solar thermal collector (1) and the heat storage water tank (2) that by circulating heat transfer pipeline (3), connect, it is characterized in that: on described circulating heat transfer pipeline (3), be serially connected with circulating pump, described circulating pump after testing control device (5) is electrically connected to photovoltaic module (6), starts described circulating pump when described detection control apparatus (5) detection solar irradiance value is more than or equal to setting value.
2. a kind of photovoltaic DC forced circulation solar water heater according to claim 1, is characterized in that: described detection control apparatus (5) comprises current acquisition module (51), controller (52) and driver module (53), wherein,
Current acquisition module (51), for detecting in real time the current value of photovoltaic module (6) output;
Controller (52), for current value is converted into current solar irradiance value according to linear relationship, and compares current solar irradiance value and preset solar irradiance threshold value, according to comparative result, to driver module (53), sends corresponding signal;
Driver module (53), is delivered to circulating pump for the electric current that photovoltaic module (6) is produced.
3. a kind of photovoltaic DC forced circulation solar water heater according to claim 1, is characterized in that: described detection control apparatus (5) comprises solar irradiance tester (54), controller (52) and driver module (53), wherein,
Solar irradiance tester (54), for detecting in real time current solar irradiance value;
Controller (52), for by described current solar irradiance value and the solar irradiance threshold comparison prestoring, sends corresponding signal according to comparative result to driver module (53);
Driver module (53), is delivered to circulating pump for the electric current that photovoltaic module (6) is produced.
4. according to a kind of photovoltaic DC forced circulation solar water heater described in claim 2 or 3, it is characterized in that: described solar irradiance threshold value is 300W/m
2.
5. according to a kind of photovoltaic DC forced circulation solar water heater described in claim 2 or 3, it is characterized in that: described detection control apparatus (5) also comprises delay timer (55), described delay timer (55) is connected with controller (52).
6. a kind of photovoltaic DC forced circulation solar water heater according to claim 1, is characterized in that: described circulating pump is brushless dc pump (4).
7. a kind of photovoltaic DC forced circulation solar water heater according to claim 6, is characterized in that: described circulating pump is the brushless dc pump (4) of zero start electric current, wide voltage power supply scope.
8. a kind of photovoltaic DC forced circulation solar water heater according to claim 1, is characterized in that: described solar thermal collector (1) be installed on same plane with described photovoltaic module (6) and angle of inclination identical.
9. a kind of photovoltaic DC forced circulation solar water heater according to claim 1, is characterized in that: described circulating pump and circulating heat transfer pipeline (3) are installed on the bottom of described heat storage water tank (2).
10. a kind of photovoltaic DC forced circulation solar water heater according to claim 1, it is characterized in that: in the middle of described heat storage water tank (2), be water space (21), outer wall sandwich establishment space (22), mezzanine space is filled with anti-icing fluid in (22), described circulating pump drives described anti-icing fluid to carry out heat exchange through circulating heat transfer pipeline (3) and solar thermal collector (1), with the water heating in water space (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320558426.XU CN203533904U (en) | 2013-09-09 | 2013-09-09 | Photovoltaic direct current forced circulation solar water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320558426.XU CN203533904U (en) | 2013-09-09 | 2013-09-09 | Photovoltaic direct current forced circulation solar water heater |
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| Publication Number | Publication Date |
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| CN203533904U true CN203533904U (en) | 2014-04-09 |
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| CN201320558426.XU Expired - Lifetime CN203533904U (en) | 2013-09-09 | 2013-09-09 | Photovoltaic direct current forced circulation solar water heater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915778A (en) * | 2020-03-09 | 2022-01-11 | 山东省产品质量检验研究院 | Automatic adjusting and circulating driving method for solar heat-conducting medium |
-
2013
- 2013-09-09 CN CN201320558426.XU patent/CN203533904U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915778A (en) * | 2020-03-09 | 2022-01-11 | 山东省产品质量检验研究院 | Automatic adjusting and circulating driving method for solar heat-conducting medium |
| CN113915778B (en) * | 2020-03-09 | 2023-11-03 | 山东省产品质量检验研究院 | Automatic regulation and circulation driving method for solar heat conducting medium |
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Granted publication date: 20140409 |