CN103836715A - Solar gas composite energy water heating system and use method - Google Patents
Solar gas composite energy water heating system and use method Download PDFInfo
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- CN103836715A CN103836715A CN201210481320.4A CN201210481320A CN103836715A CN 103836715 A CN103836715 A CN 103836715A CN 201210481320 A CN201210481320 A CN 201210481320A CN 103836715 A CN103836715 A CN 103836715A
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
Abstract
The invention relates to the field of water storage heaters and discloses a solar gas composite energy water heating system. The system comprises a solar heater, a gas water heater, a water tank, a central hot water circulating circuit and a control system and is characterized in that the water tank comprises a constant temperature tank and a heat storage tank, wherein the constant temperature tank is directly connected with the central hot water circulating circuit, and the heat storage tank forms a solar circulating circuit with the solar heater. A first water outlet in the upper end of the constant temperature tank is connected with a water inlet of the gas water heater, and a first water inlet in the upper end of the constant temperature tank is connected with a water inlet of the gas water heater to form a heating and circulating circuit. A water outlet of the heat storage tank is connected with a second water inlet in the lower end of the constant temperature tank and a water inlet of the gas water heater. Compared with the prior art, the solar gas composite energy water heating system has the advantages that the solar utilization rate is high, the heating rate is high, and continuous large flow constant temperature water supplying capacity can be obtained through little heat output of a gas heating device. The invention further provides a control method based on the water heating system.
Description
Technical field
The present invention relates to water-storage heater field, relate in particular to a kind of solar gas compound energy hot-water heating system and using method.
Background technology
In recent years, along with energy-conserving and environment-protective propose more and more higher requirement to household electrical appliance, solar gas water heater is subject to user's favor gradually.But independent solar water heater climate impact is large, is carved with sufficient hot water and uses while being difficult to guarantee.For this reason, in industry, developed the compound many thermals source hot-water heating system of a kind of solar gas.
The Chinese patent that is CN2740949 as one piece of publication number discloses a kind of many thermals source (solar energy, gas, electricity) central fuel gas water heating device, as shown in Figure 1, comprise: solar heat collector 01, gas-operated thermal bath facility 02, thermostatic pump 03, temperature sensor 04, temperature control system 05, the water inlet of described gas-operated thermal bath facility 02 is connected with water storing tank 06, and delivery port is connected and forms closed circuit with water storing tank 06 by thermostatic pump 03; The water inlet of described solar heat collector communicates with running water, and outlet is connected with water storing tank 06; Temperature sensor is located in water storing tank 06.Though the combustion gas compound energy hot-water heating system of the integrated two kinds of firing equipments of this independent water pot can be utilized solar energy and the combination of fuel gas buring heat energy, two defects below main existence: 1) the solar energy circulation temperature difference is less, and the efficiency of heating surface is low; 2) utilization rate of solar energy is low, and in water storing tank, the often heating repeatedly due to gas utensil, makes water tank temperature remain on design temperature, and now, even if met the entry condition of solar energy, system also can force solar energy not start.3) continuously large flow water supply capacity is low, because the heat of sun the subject of knowledge and the object of knowledge heating is not participated in heat output directly, want to obtain while continuing large flow constant temperature water supply, must realize by the heating efficiency that improves gas heater, therefore fan-out capability is subject to the restriction of gas heater heating efficiency.
In view of this, how a kind of solar energy utilization ratio of development and Design is high, avoid with discharge be subject to gas heater heating efficiency limitation, novel solar gas compound energy hot-water heating system is a new problem of puzzlement industry development.
Summary of the invention
For problems of the prior art, the invention provides a kind of novel solar gas compound energy hot-water heating system, solve the low problem of solar energy utilization ratio in solar gas compound energy hot-water heating system, alleviate solar gas compound energy hot-water heating system and be subject to gas heater heating efficiency restricted problem by discharge.
For reaching above object, the present invention adopts following technical scheme.
A kind of solar gas compound energy hot-water heating system, comprising: solar heater, gas heater, water pot, central hot water closed circuit and control system; It is characterized in that, described water pot comprises: the thermostatic tank being directly connected with central hot water closed circuit, with the heat storage can of solar heater formation solar energy closed circuit; The connected mode of described thermostatic tank and heat storage can is: the first delivery port of thermostatic tank upper end is connected the water inlet of gas heater, and the first water inlet of this thermostatic tank upper end connects the delivery port of gas heater, forms heat cycles loop; The delivery port of described heat storage can connects the second water inlet of thermostatic tank lower end and the water inlet of gas heater by triple valve.
As with improvement, in described thermostatic tank, be provided with the first temperature sensor being connected with control system.
As with improvement, in described heat storage can, be provided with the second temperature sensor being connected with control system.
As with improvement, described heat cycles loop is provided with the first tubing pump being connected with control system; This first tubing pump is positioned on the pipeline that connects thermostatic tank the first delivery port and gas heater water inlet.
As with improvement, described central hot water circulation system is provided with the second pipe pump being connected with control system.
The present invention also provides a kind of control method based on above-mentioned solar gas compound energy hot-water heating system, it is characterized in that: adopt quantity of heat storage monitoring close-loop control mode,, the temperature that control system detects by first sensor, the second sensor, calculate the instantaneous quantity of heat storage of compound energy hot-water heating system, in the time that user has preengage the water consumption in a certain period by reservation module, before this period arrives, control system automatically determines whether and meets consumers' demand according to above instantaneous quantity of heat storage; As not, control system starts immediately heat cycles loop by heating module thermostatic tank is carried out to heat supplement.
As with improvement, the control mode in described heat cycles loop is: with under water state, when thermostatic tank water temperature≤startup target temperature, and set flow for the moment with discharge <, start the first tubing pump, open gas heater thermostatic tank is heated; Set flow for the moment when thermostatic tank water temperature≤startup target temperature and with discharge >, close the first tubing pump, control system is switched triple valve, and the water in heat storage can directly enters gas heater through triple valve, starts gas heater thermostatic tank is heated; In the time of thermostatic tank water temperature > target setting temperature, gas heater does not does not start or stop startup.
Further with improvement, described quantity of heat storage monitoring close-loop control mode comprises the control mode of solar energy closed circuit, this solar energy closed circuit control mode is: in the time of the temperature difference that the water temperature > of the water temperature-heat storage can of solar heater sets, control system is opened solar energy closed circuit by the first control module; When the startup temperature difference of setting as the water temperature < of the water temperature-heat storage can of solar heater or the water temperature of heat storage can reach the temperature of setting, solar energy closed circuit is out of service.
Further with improvement, described quantity of heat storage monitoring close-loop control mode comprises the control mode of central hot water closed circuit, the control mode of this central hot water closed circuit is: in the time of water temperature < start-up temperature on thermostatic tank water temperature > design temperature and central hot water closed circuit, control system is opened the second pipe pump on central hot water closed circuit by the second control module; In the time of the water temperature in central hot water circulation loop >=close target temperature or thermostatic tank water temperature≤uniform temperature or second pipe pump when operation exceedes setting-up time continuously, close central hot water closed circuit.
Compared with existing many thermals source hot-water heating system, solar gas compound energy hot-water heating system provided by the invention has following beneficial effect:
One, solar heater and combustion gas gas heater are separated to design, adopt heat storage can and thermostatic tank heat accumulation respectively, effectively improve the heat transfer temperature difference of solar energy, improve the utilization rate of heat transfer effect and solar energy.
Two, adopt solar energy separately heat storage can be heated, the size of heat storage can is selected according to the fraction of designed solar energy, as long as system has water demand, solar energy just has heat output, and solar energy utilization ratio is high.
Three, utilize the throughput direction of heat in control system intelligent selection heat storage can, and cold water is all that first preheating enters thermostatic tank or gas heater again through heat storage can, realizes with less gas heater heat output and just can obtain continuous large flow constant-temperature hot water.
Four, by intelligence reservation module is set, facilitate water period and the water consumption of user preset, guarantee the water demand of user within this period.
A kind of control method based on above-mentioned hot-water heating system provided by the invention, adopts quantity of heat storage monitoring close-loop control mode, facilitates user to carry out water reservation, controls effective.
Accompanying drawing explanation
Figure 1 shows that existing solar gas compound energy hot-water heating system principle schematic;
Figure 2 shows that the principle schematic of solar gas compound energy hot-water heating system embodiment mono-provided by the invention;
Figure 3 shows that the heat cycles circuit controls flow chart of solar gas compound energy hot-water heating system provided by the invention;
Figure 4 shows that the solar energy closed circuit control flow chart of solar gas compound energy hot-water heating system provided by the invention;
Figure 5 shows that the central hot water closed circuit control flow chart of solar gas compound energy hot-water heating system provided by the invention;
Figure 6 shows that the structural representation of solar gas compound energy hot-water heating system embodiment bis-provided by the invention.
Description of reference numerals:
01, solar heat collector 02, gas-operated thermal bath facility 03, thermostatic pump 04, temperature sensor 05, temperature control system 06, water storing tank
1, solar heater 2, gas heater 3, central hot water closed circuit 4, thermostatic tank 5, heat storage can 21, water inlet 22, delivery port 41, the first delivery port 42, the first water inlet 43, the second water inlet 44, the first temperature sensor 51, delivery port 52, the second temperature sensor 7, the first tubing pump 8, second pipe pump.
The specific embodiment
For further setting forth essence of the present invention, by reference to the accompanying drawings the specific embodiment of the present invention is described as follows.
Embodiment mono-
As shown in Figure 2, a kind of solar gas compound energy hot-water heating system, comprise: solar heater 1, gas heater 2, central hot water closed circuit 3, the thermostatic tank 4 being directly connected with central hot water closed circuit 3, forms the heat storage can 5 of solar energy closed circuit and control system with solar heater 1.
Wherein, the first delivery port 41 of described thermostatic tank 4 connects the water inlet 21 of gas heater 2, and the delivery port 22 that the first water inlet 42 of this thermostatic tank 4 connects gas heater 2 forms heat cycles loop.The delivery port 51 of described heat storage can 5 connects the second water inlet 43 of thermostatic tank and the water inlet 21 of gas heater by triple valve 6.
Described control system comprises: control the first control module of solar energy closed circuit, control the heating module in heat cycles loop, control the second control module and the intelligence reservation module of central hot water closed circuit.
Especially, for convenience of solar gas compound energy hot-water heating system is controlled, in described thermostatic tank 4, be provided with the first temperature sensor 44 being connected with control system, in described heat storage can 5, be provided with the second temperature sensor 52 being connected with control system, described heat cycles loop is provided with the first tubing pump 7 being connected with control system; This first tubing pump 7 is positioned on the pipeline of the delivery port 22 that connects thermostatic tank 4 first water inlets 42 and gas heater, and described central hot water closed circuit 3 is provided with the second pipe pump 8 being connected with control system.
When working control, the solar gas compound energy hot-water heating system that the present embodiment provides adopts quantity of heat storage monitoring close-loop control mode,, the thermometer that control system detects by first sensor, the second sensor calculates the instantaneous quantity of heat storage of compound energy hot-water heating system, in the time that user has preengage the water consumption in a certain period by reservation module, before this period arrives, control system automatically determines whether and meets consumers' demand according to above instantaneous quantity of heat storage; As not, control system starts immediately heat cycles loop by heating module thermostatic tank is carried out to heat supplement.
Particularly, as shown in Figure 3, the control mode in described heat cycles loop is: with under water state, when thermostatic tank water temperature S2≤startup target temperature, and while setting flow one (volume/time) with discharge F1 <, start the first tubing pump P1, open gas heater thermostatic tank is heated; While setting flow one (volume/time) when thermostatic tank water temperature S2≤startup target temperature and with discharge F1 >, close the first tubing pump P1, control system is switched triple valve, water in heat storage can directly enters gas heater through triple valve, starts gas heater thermostatic tank is heated; In the time that thermostatic tank water temperature S2 > closes target temperature, gas heater does not does not start or stop startup.And under useless water state: when thermostatic tank water temperature S2≤startup target temperature, start the first tubing pump P1 water pump, open gas heater thermostatic tank is heated.
Described quantity of heat storage monitoring close-loop control mode also comprises the control mode of solar energy closed circuit, as shown in Figure 4, this solar energy closed circuit control mode is: in the time of the startup temperature difference that the water temperature > of solar heater water temperature S4-heat storage can sets, control system is opened solar energy closed circuit by the first control module; When the startup temperature difference of setting as the water temperature < of the water temperature S4-of solar heater heat storage can or the water temperature of heat storage can reach the temperature of setting, solar energy closed circuit is out of service.In the present embodiment, the startup temperature difference of described setting is 10 ℃.
Described quantity of heat storage monitoring close-loop control mode comprises the control mode of central hot water closed circuit, as shown in Figure 5, the control mode of this central hot water closed circuit is: in the time of water temperature < start-up temperature on thermostatic tank water temperature > design temperature and central hot water closed circuit, control system is opened the second pipe pump P2 on central hot water closed circuit by the second control module; In the time of the water temperature in central hot water circulation loop >=close target temperature or thermostatic tank water temperature≤uniform temperature or second pipe pump P2 when operation exceedes setting-up time continuously, close central hot water closed circuit.
A kind of solar gas compound energy hot-water heating system that the present embodiment provides, adopt solar energy separately heat storage can be heated, the size of heat storage can is selected according to the fraction of designed solar energy, as long as system has water demand, solar energy just has heat output, has guaranteed the efficient operation of solar energy.Simultaneously, owing to thering is constant-temperature hot water in thermostatic tank, in the time having water demand, cold water is flowed into by solar energy heat-storage tank bottom, hot water in solar energy heat-storage tank enters thermostatic tank through triple valve, and control system detects water temperature and water uninterrupted by sensor, automatically judge water pump the first tubing pump and triple valve unlatching, close, thereby the system that guarantees at any time has larger defeated heat energy power.In addition,, because cold water is all that first preheating enters thermostatic tank or gas heater again through solar energy heat-storage tank, can realize the effect that just can reach continuously large flow constant temperature water supply with less gas heater heat output.
Embodiment bis-
As shown in Figure 6, a kind of solar gas compound energy hot-water heating system, comprise: solar heater 1, gas heater 2, central hot water closed circuit 3, the thermostatic tank 4 being directly connected with central hot water closed circuit 3, forms the heat storage can 5 of solar energy closed circuit and control system with solar heater 1.
A kind of solar gas compound energy hot-water heating system and embodiment mono-that the present embodiment provides are basically identical, and difference is only: described thermostatic tank 4 is superimposed upon on heat storage can 5, and mounting structure compactness takes up room little.
The above specific embodiment has been described in detail essence of the present invention, but can not limit protection scope of the present invention with this.In every case the simple modifications of doing according to the present invention's essence and modify the protection domain of this patent that all falls within.In addition, in the present invention, the described first, second, third relative definition of only doing for convenience, is not used for the particular location of each parts to limit.
Claims (9)
1. a solar gas compound energy hot-water heating system, comprising: solar heater, gas heater, water pot, central hot water closed circuit and control system; It is characterized in that, described water pot comprises: the thermostatic tank being directly connected with central hot water closed circuit, with the heat storage can of solar heater formation solar energy closed circuit; The connected mode of described thermostatic tank and heat storage can is: the first delivery port of thermostatic tank upper end is connected the water inlet of gas heater, and the first water inlet of this thermostatic tank upper end connects the delivery port of gas heater, forms heat cycles loop; The delivery port of described heat storage can connects the second water inlet of thermostatic tank lower end and the water inlet of gas heater by triple valve.
2. solar gas compound energy hot-water heating system according to claim 1, is characterized in that, is provided with the first temperature sensor being connected with control system in described thermostatic tank.
3. solar gas compound energy hot-water heating system according to claim 1, is characterized in that, is provided with the second temperature sensor being connected with control system in described heat storage can.
4. solar gas compound energy hot-water heating system according to claim 1, is characterized in that, described heat cycles loop is provided with the first tubing pump being connected with control system; This first tubing pump is positioned on the pipeline that connects thermostatic tank the first delivery port and gas heater water inlet.
5. solar gas compound energy hot-water heating system according to claim 1, is characterized in that, described central hot water circulation system is provided with the second pipe pump being connected with control system.
6. the control method based on solar gas compound energy hot-water heating system described in claim 1-5, it is characterized in that: adopt quantity of heat storage monitoring close-loop control mode,, the temperature that control system detects by first sensor, the second sensor, calculate the instantaneous quantity of heat storage of energy hot-water heating system, in the time that user has preengage the water consumption in a certain period by reservation module, before this period arrives, control system automatically determines whether and meets consumers' demand according to above instantaneous quantity of heat storage; As not, control system starts immediately heat cycles loop by heating module thermostatic tank is carried out to heat supplement.
7. control method according to claim 6, its feature is being, the control mode in described heat cycles loop is: with under water state, when thermostatic tank water temperature≤startup target temperature, and set flow for the moment with discharge <, start the first tubing pump, open gas heater thermostatic tank is heated; Set flow for the moment when thermostatic tank water temperature≤startup target temperature and with discharge >, close the first tubing pump, control system is switched triple valve, and the water in heat storage can directly enters gas heater through triple valve, starts gas heater thermostatic tank is heated; In the time that thermostatic tank water temperature > closes target temperature, gas heater does not does not start or stop startup.
8. control method according to claim 6, its feature is being, described quantity of heat storage monitoring close-loop control mode comprises the control mode of solar energy closed circuit, this solar energy closed circuit control mode is: in the time of the temperature difference that the water temperature > of the water temperature-heat storage can of solar heater sets, control system is opened solar energy closed circuit by the first control module; When the startup temperature difference of setting as the water temperature < of the water temperature-heat storage can of solar heater or the water temperature of heat storage can reach the temperature of setting, solar energy closed circuit is out of service.
9. control method according to claim 6, its feature is being, described quantity of heat storage monitoring close-loop control mode comprises the control mode of central hot water closed circuit, the control mode of this central hot water closed circuit is: in the time of water temperature < start-up temperature on thermostatic tank water temperature > design temperature and central hot water closed circuit, control system is opened the second pipe pump on central hot water closed circuit by the second control module; In the time of the water temperature in central hot water circulation loop >=close target temperature or thermostatic tank water temperature≤uniform temperature or second pipe pump when operation exceedes setting-up time continuously, close central hot water closed circuit.
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| CN201210481320.4A CN103836715B (en) | 2012-11-23 | 2012-11-23 | A kind of solar gas compound energy hot-water heating system |
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| CN201210481320.4A CN103836715B (en) | 2012-11-23 | 2012-11-23 | A kind of solar gas compound energy hot-water heating system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650855A (en) * | 2016-03-26 | 2016-06-08 | 广东万家乐燃气具有限公司 | Gas water heater with reservation function and control method thereof |
| CN106766221A (en) * | 2016-12-21 | 2017-05-31 | 杭州联络互动信息科技股份有限公司 | Coordinate the control method and its device of supplying hot water |
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| CN201779759U (en) * | 2010-03-23 | 2011-03-30 | 上海博阳新能源科技有限公司 | Multifunctional solar energy and gas combined stove |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650855A (en) * | 2016-03-26 | 2016-06-08 | 广东万家乐燃气具有限公司 | Gas water heater with reservation function and control method thereof |
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| CN106766221A (en) * | 2016-12-21 | 2017-05-31 | 杭州联络互动信息科技股份有限公司 | Coordinate the control method and its device of supplying hot water |
| CN106766221B (en) * | 2016-12-21 | 2019-06-07 | 杭州联络互动信息科技股份有限公司 | Cooperate the control method and its device of supplying hot water |
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| CN103836715B (en) | 2018-03-20 |
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