CN102538220A - Water heating device for solar water heater and control method of water heating device - Google Patents
Water heating device for solar water heater and control method of water heating device Download PDFInfo
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- CN102538220A CN102538220A CN2012100382736A CN201210038273A CN102538220A CN 102538220 A CN102538220 A CN 102538220A CN 2012100382736 A CN2012100382736 A CN 2012100382736A CN 201210038273 A CN201210038273 A CN 201210038273A CN 102538220 A CN102538220 A CN 102538220A
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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
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Abstract
The invention relates to a water heating device for a solar water heater, which comprises a hot water inlet pipe, a hot water flow regulating device, a cold water inlet pipe, a cold water flow regulating device, an intermediate pipe, an electric heating device and a water outlet pipe. The two ends of the hot water inlet pipe are respectively connected with the water outlet of the solar water heater and the inlet of the hot water flow regulating device. One end of the cold water inlet pipe is a cold water inlet and the other end of the cold water inlet pipe is connected with the inlet of the cold water flow regulating device. The outlet of the hot water flow regulating device and the outlet of the cold water flow regulating device are connected with each other. The connection position of the outlet of the hot water flow regulating device and the outlet of the cold water flow regulating device is connected with one end of the intermediate pipe. The other end of the intermediate pipe is connected with the water inlet of the electric heating device. The water outlet of the electric heating device is connected with the water outlet pipe. An intermediate temperature sensor and a flow sensor are arranged on the intermediate pipe. An outlet water temperature sensor is arranged on the water outlet pipe. By adopting a control method of the water heating device, the mode can be automatically switched according to the water temperature of the solar water heater. No matter whether the water pipe of the solar water heater is frozen or not, hot water can be rapidly provided to users in all weather.
Description
Technical field
The present invention relates to a kind of hot water apparatus and control method thereof that matches and use with solar water heater.
Background technology
General domestic solar water heater relies on sunshine provides energy to add hot water.Its hot water water temperature depends on the strong and weak and sunlit length of sunlight.In general, summer, water temperature was high, and winter, water temperature was low; Fine water temperature is high, and overcast and rainy water temperature is low.So will appear at winter or when overcast and rainy, solar water heater can not provide the hot water of enough heat.And in cold especially weather, solar water heater water pipe can occur and freeze, so that hot water can not be provided.Now a lot of solar water heaters have electrical heating, but this electrical heating has following shortcoming:
Electrical heating is manually, needs user oneself to open electric heater unit.If the user forgets then do not have hot water and can use.
The electrical heating required time is long, and common minimum needs 1～2 hour can not in time provide hot water.
Electrical heating is that all water in the solar water heater are all heated, but the user does not need to use water all in the solar water heater usually at once.Will waste unnecessary electric energy like this.
Summary of the invention
Technical problem to be solved by this invention is: provide the round-the-clock solar water heater that hot water is provided fast and can saves electric energy for the user of a kind of ability with hot water apparatus and control method thereof.
For addressing the above problem; The technical scheme that the present invention adopts is: solar water heater is used hot water apparatus; Comprise hot water inlet pipe, hot water flow adjusting device, cold water inlet, cold water flow regulator, intervalve, electric heater unit and outlet pipe, said hot water inlet pipe's a end is connected with the delivery port of solar water heater, and hot water inlet pipe's the other end is connected with the import of hot water flow adjusting device; One end of cold water inlet is the cold water water inlet; The other end is connected with the import of cold water flow regulator, and the outlet of the outlet of hot water flow adjusting device and cold water flow regulator joins mutually and its junction is connected an end of intervalve, and the other end of intervalve is connected with the water inlet of electric heater unit; The delivery port of electric heater unit is connected with an end of outlet pipe; The other end of outlet pipe is a delivery port, and intervalve is provided with medium temperature sensor and flow sensor, and outlet pipe is provided with the leaving water temperature sensor.
Said solar-energy water heater is with the control method of hot water apparatus, and after comprising the steps: to start shooting, cold water flow regulator control cold water inlet is closed, and the control of hot water flow adjusting device the hot water inlet pipe open, and flow sensor detects the flow in the intervalve,
As do not have flow, and then hot water flow adjusting device control hot water inlet pipe closes, and cold water flow regulator control cold water inlet is opened, and electric heater unit is worked simultaneously, and the leaving water temperature heating is reached user's design temperature;
If any flow, then the medium temperature sensor detects the water temperature in the intervalve, sets when temperature required when water temperature is lower than the user, and electric heater unit work reaches user's design temperature with the leaving water temperature heating; Set when temperature required a little less than the user when water temperature, cold water flow regulator control cold water inlet is opened, cold water and hot water are mixed to a certain premixed temperature and setting flow earlier, be heated to temperature required again by electric heater unit; When being higher than the user, water temperature sets when temperature required; Electric heater unit quits work; Cold water flow regulator control cold water inlet is opened; Respectively cold water inlet and hot water inlet pipe's flow is regulated through cold water flow regulator and hot water flow adjusting device, to reach control leaving water temperature and flow.
When electric heater unit is worked, three kinds of control methods are arranged: current control formula, power control formula and hybrid;
Current control formula is: certain at electric heater unit power, reach leaving water temperature control through the control flow;
Power control formula is: certain at flow, reach leaving water temperature control through adjusting to electric heater unit power;
Hybridly be: current control formula is used with power control formula simultaneously, reaches leaving water temperature and controls through electric heater unit power and flow are regulated simultaneously.
The invention has the beneficial effects as follows: said solar-energy water heater is used hot water apparatus, and it is simple in structure, easy to use, and no matter whether the water pipe of solar water heater freezes, and all can for the user hot water be provided fast round-the-clock; Its mode of operation can automatically switch according to the water temperature situation of solar water heater, and can save electric energy.
Description of drawings
Fig. 1 is the theory structure sketch map of solar water heater of the present invention with hot water apparatus;
Fig. 2 is the control flow chart of solar water heater of the present invention with hot water apparatus;
Among the figure: 1, hot water inlet pipe, 2, cold water inlet, 3, intervalve, 4, outlet pipe; 5, solar water heater, 6, electric heater unit, 7, delivery port; 8, cold water water inlet, 9, the hot water flow adjusting device, 10, the cold water flow regulator; 11, medium temperature sensor, 12, flow sensor, 13, the leaving water temperature sensor.
The specific embodiment
Through specific embodiment solar water heater of the present invention is done further to describe in detail with hot water apparatus and control method thereof below.
As shown in Figure 1; Solar water heater is used hot water apparatus; Comprise hot water inlet pipe 1, hot water flow adjusting device 9, cold water inlet 2, cold water flow regulator 10, intervalve 3, electric heater unit 6 and outlet pipe 4, an end of hot water inlet pipe 1 is connected with the delivery port of solar water heater 5, and hot water inlet pipe 1 the other end is connected with the import of hot water flow adjusting device 9; One end of cold water inlet 2 is cold water water inlets 8; The other end is connected with the import of cold water flow regulator 10, and the outlet of the outlet of hot water flow adjusting device 9 and cold water flow regulator 10 joins mutually and its junction is connected an end of intervalve 3, and the other end of intervalve 3 is connected with the water inlet of electric heater unit 6; The delivery port of electric heater unit 6 is connected with an end of outlet pipe 4; The other end of outlet pipe 4 is a delivery port 7, and intervalve 3 is provided with medium temperature sensor 11 and flow sensor 12, and outlet pipe 4 is provided with leaving water temperature sensor 13.
As shown in Figure 2; Said solar-energy water heater is with the control method of hot water apparatus, and after comprising the steps: to start shooting, cold water flow regulator 10 control cold water inlets 2 are closed; The hot water flow adjusting device 9 control hot water inlet pipes 1 open, the flow that flow sensor 12 detects in the intervalve 3.
As do not have flow, and explain that then the water pipe of solar water heater 5 freezes, then get into pattern 4; The hot water flow adjusting device 9 control hot water inlet pipes 1 close; Cold water flow regulator 10 control cold water inlets 2 are opened, and electric heater unit 6 is worked simultaneously, and the leaving water temperature heating is reached user's design temperature.
If any flow, explain that then the water pipe of solar water heater 5 does not freeze, the water temperature that medium temperature sensor 11 detects in the intervalve 3,
Set when temperature required far below the user when water temperature, then get into pattern 2, electric heater unit 6 work reach user's design temperature with the leaving water temperature heating.
When water temperature is set when temperature required a little less than the user; Then get into mode 3; Cold water flow regulator 10 control cold water inlets 2 are opened, and make cold water and hot water be mixed to a certain premixed temperature and setting flow earlier, are heated to temperature required by electric heater unit 6 again; Thereby can reduce the complexity of electric heater unit 6 power control and regulation, the selection of this premixed temperature should with guarantee equilibrium temperature control under the prerequisite power consumption minimum be principle;
When being higher than the user, water temperature sets when temperature required; Then get into pattern 1; Electric heater unit 6 quits work; Cold water flow regulator 10 control cold water inlets 2 are opened, and respectively cold water inlet 2 and hot water inlet pipe's 1 flow are regulated through cold water flow regulator 10 and hot water flow adjusting device 9, to reach the control to leaving water temperature and flow.
When pattern 1 operation, when the hot water water temperature reduced, cold water flow regulator 10 can reduce the cold water flow, is setting value to keep the water outlet water temperature; Set when temperature required when the hot water water temperature is lower than the user, cold water flow regulator 10 control cold water inlets 2 are closed, and switch to pattern 2 simultaneously.This switches to automatic completion, need not manual switching.
When pattern 2 operation, when leaving water temperature and flow can not satisfy simultaneously, can switch to mode 3, in the time of can not satisfying leaving water temperature and flow like mode 3, first satisfied temperature is controlled.
In the above-mentioned mode of operation, when electric heater unit 6 was participated in work, its control method had three kinds: current control formula, power control formula and hybrid.
In the control of current control formula, electric heater unit 6 can have several power shelves, selects suitable power shelves according to the needs of water flow.The power of each power shelves is uncontrollable, and at certain power shelves, leaving water temperature is that controller is realized through the adjusting to electric heater unit 6 flow of inlet water.Controller is according to the difference of leaving water temperature and design temperature, electric heater unit 6 residing power shelves, and electric heater unit 6 water inlet water thermometers are calculated flow control signal and controlled electric heater unit 6 flow of inlet water, and are consistent with set water temperature to reach the water outlet water temperature.Current control formula can have control accurately to water temperature, but is difficult to satisfy simultaneously flow is precisely controlled.
In the control of power control formula; The power of electric heater unit 6 is unlimited adjustable between zero energy and peak power; Controller is according to the difference of leaving water temperature and design temperature; Flow sensor signal, electric heater unit 6 water inlet water thermometers are calculated the power that power signal is controlled electric heater unit 6, and are consistent with set water temperature to reach the water outlet water temperature.
In hybrid control, the power of electric heater unit 6 is unlimited adjustable between zero energy and peak power.Controller is according to the difference of leaving water temperature and design temperature, flow sensor signal, and electric heater unit 6 water inlet water thermometers are calculated power and the flow of inlet water that power signal box flow signal is controlled electric heater unit 6, to reach the accurate control of group water outlet water temperature and flow.
The above embodiments are the principle and the effect thereof of illustrative the invention only, and the embodiment of part utilization, but not is used to limit the present invention; Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the invention design, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (3)
1. solar water heater is used hot water apparatus; Comprise hot water inlet pipe, hot water flow adjusting device, cold water inlet, cold water flow regulator, intervalve, electric heater unit and outlet pipe; It is characterized in that: said hot water inlet pipe's a end is connected with the delivery port of solar water heater; Hot water inlet pipe's the other end is connected with the import of hot water flow adjusting device, and an end of cold water inlet is the cold water water inlet, and the other end is connected with the import of cold water flow regulator; The outlet of the outlet of hot water flow adjusting device and cold water flow regulator joins mutually and its junction is connected an end of intervalve; The other end of intervalve is connected with the water inlet of electric heater unit, and the delivery port of electric heater unit is connected with an end of outlet pipe, and the other end of outlet pipe is a delivery port; Intervalve is provided with medium temperature sensor and flow sensor, and outlet pipe is provided with the leaving water temperature sensor.
2. solar water heater according to claim 1 is with the control method of hot water apparatus; It is characterized in that: after comprising the steps: start; Cold water flow regulator control cold water inlet is closed; The control of hot water flow adjusting device the hot water inlet pipe open, and flow sensor detects the flow in the intervalve
As do not have flow, and then hot water flow adjusting device control hot water inlet pipe closes, and cold water flow regulator control cold water inlet is opened, and electric heater unit is worked simultaneously, and the leaving water temperature heating is reached user's design temperature;
If any flow, then the medium temperature sensor detects the water temperature in the intervalve, sets when temperature required when water temperature is lower than the user, and electric heater unit work reaches user's design temperature with the leaving water temperature heating; Set when temperature required a little less than the user when water temperature, cold water flow regulator control cold water inlet is opened, cold water and hot water are mixed to a certain premixed temperature and setting flow earlier, be heated to temperature required again by electric heater unit; When being higher than the user, water temperature sets when temperature required; Electric heater unit quits work; Cold water flow regulator control cold water inlet is opened; Respectively cold water inlet and hot water inlet pipe's flow is regulated through cold water flow regulator and hot water flow adjusting device, to reach control leaving water temperature and flow.
3. according to the control method of the said solar water heater of claim 2, it is characterized in that: when electric heater unit is worked, three kinds of control methods are arranged: current control formula, power control formula and hybrid with hot water apparatus;
Current control formula is: certain at electric heater unit power, reach leaving water temperature control through the control flow;
Power control formula is: certain at flow, reach leaving water temperature control through adjusting to electric heater unit power;
Hybridly be: current control formula is used with power control formula simultaneously, reaches leaving water temperature and controls through electric heater unit power and flow are regulated simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012100382736A CN102538220A (en) | 2012-02-20 | 2012-02-20 | Water heating device for solar water heater and control method of water heating device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100382736A CN102538220A (en) | 2012-02-20 | 2012-02-20 | Water heating device for solar water heater and control method of water heating device |
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| CN102538220A true CN102538220A (en) | 2012-07-04 |
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| CN2012100382736A Pending CN102538220A (en) | 2012-02-20 | 2012-02-20 | Water heating device for solar water heater and control method of water heating device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363693A (en) * | 2013-07-02 | 2013-10-23 | 李海东 | Energy-saving solar water heating system |
| CN103673334A (en) * | 2012-09-07 | 2014-03-26 | 樱花卫厨（中国）股份有限公司 | Solar water heater intelligent control system and control method |
| CN105627554A (en) * | 2016-01-14 | 2016-06-01 | 安徽工业大学 | Solar water heater and auxiliary electric heating device and use method thereof |
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| CN202442509U (en) * | 2012-02-20 | 2012-09-19 | 朱祥桢 | Water heating device for solar water heater |
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2012
- 2012-02-20 CN CN2012100382736A patent/CN102538220A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003214703A (en) * | 2002-01-28 | 2003-07-30 | Rinnai Corp | Hot/cold water mixing unit |
| CN2893547Y (en) * | 2006-05-20 | 2007-04-25 | 杨百昌 | Imediate opening imediate discharging hot water device for domestic solar water heater |
| CN201050837Y (en) * | 2007-06-08 | 2008-04-23 | 陈凤军 | Solar water heater automatically regulating water temperature |
| CN201527033U (en) * | 2009-10-28 | 2010-07-14 | 广东粤佳太阳能有限公司 | Device integrating solar-energy water heating system with gas water heater |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103673334A (en) * | 2012-09-07 | 2014-03-26 | 樱花卫厨（中国）股份有限公司 | Solar water heater intelligent control system and control method |
| CN103673334B (en) * | 2012-09-07 | 2015-12-16 | 樱花卫厨（中国）股份有限公司 | The control method of solar water heater intelligence control system |
| CN103363693A (en) * | 2013-07-02 | 2013-10-23 | 李海东 | Energy-saving solar water heating system |
| CN103363693B (en) * | 2013-07-02 | 2016-01-20 | 李海东 | A kind of energy-saving solar hot-water heating system |
| CN105627554A (en) * | 2016-01-14 | 2016-06-01 | 安徽工业大学 | Solar water heater and auxiliary electric heating device and use method thereof |
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Application publication date: 20120704 |