CN105352190A - Energy-saving control method of hot water system integrating solar energy, heat pump and fuel gas - Google Patents
Energy-saving control method of hot water system integrating solar energy, heat pump and fuel gas Download PDFInfo
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- CN105352190A CN105352190A CN201510664525.XA CN201510664525A CN105352190A CN 105352190 A CN105352190 A CN 105352190A CN 201510664525 A CN201510664525 A CN 201510664525A CN 105352190 A CN105352190 A CN 105352190A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/107—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using fluid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
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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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
Abstract
The invention relates to an energy-saving control method of a hot water system integrating solar energy, a heat pump and fuel gas. The energy-saving control method is characterized by comprising the control steps that the electricity price, the fuel gas price, the water using peak time t1 and an upper limit water temperature T3 of the local are input by a user through an input module; a first circulating water pump is started at 6 a.m. to 8 a.m., and a solar water heater starts to heat a water tank; and through heat, obtained by heating of the solar water heater, predicted by a microprocessor according to the total heat needed all day long and an outdoor ambient temperature-time function relational expression, the microprocessor works out auxiliary heating quantity which needs to be obtained through heating of a heat pump water heater or heating of a fuel gas water heater and compares the economy of operating the heat pump water heater for heating and the economy of operating the fuel gas water heater for heating, and the maximum energy efficiency ratio is regarded as a target value. The energy-saving control method has the advantages that heat obtained through solar heating all day long can be predicted, the solar energy is utilized as much as possible, the energy saving effect is good, and auxiliary heating is made more economical.
Description
Technical field
The present invention relates to the energy-saving control method of the hot-water heating system of a kind of solar energy, heat pump and combustion gas three kinds of energy compounds.
Background technology
Solar water heater is a kind of water heater of most economical, energy-conservation and environmental protection, is widely used in producing and domestic hot-water supply, but the maximum problem of solar water heater one of in use existing is that overcast and rainy to add heat inadequate.For addressing this problem, method conventional at present adopts electrical heating auxiliary heating, but electrical heating belongs to secondary energy sources, and primary energy ratio is low, and economy and the feature of environmental protection are all poor.Solar energy, heat pump, combustion gas all belong to clean energy resource, and adopting these three kinds of mode of heatings to carry out combining is energy-conservation, the most most economical hot water mode.Its control mode adopted preferentially starts Teat pump boiler auxiliary heating when solar water heater heating can not be satisfied the demand at present, when the lower Teat pump boiler cisco unity malfunction of temperature maybe can not reach required hot water temperature, start gas heater auxiliary heating.The Energy Efficiency Ratio run due to Teat pump boiler is relevant with water tank water temperature with outdoor environment temperature, the economy of also namely opening heat pump under different operating mode is different with the feature of environmental protection, the cost of gas heating also changes with region and season simultaneously, therefore according to user's user demand, meteorological condition and resource price, control is optimized to the clean energy resource composite hot-water system that solar energy, heat pump, these three kinds of hot water modes of combustion gas form, to reach energy-saving and environmental protection, economic object.
Summary of the invention
The object of this invention is to provide on a kind of basis of the clean energy resource composite hot-water system formed in existing solar energy, heat pump, these three kinds of hot water modes of combustion gas, according to user's user demand, meteorological condition and resource price, composite hot-water system is run and is optimized control, to reach the energy-saving control method of hot-water heating system of energy-saving and environmental protection, economic object solar energy, heat pump and combustion gas three kinds of energy compounds.
In order to achieve the above object, the present invention is achieved in that it is the energy-saving control method of the hot-water heating system of a kind of solar energy, heat pump and combustion gas three kinds of energy compounds, it is characterized in that rate-determining steps is as follows:
When () uses a, user is by electricity price, gas price, the water use peak time t1 and water temperature ceiling temperature T3 of input module input locality; If user is not by electricity price, gas price, water use peak time t1 and water temperature ceiling temperature T3 that input module input is local, system then gives tacit consent to input value during last use;
(b) outdoor environment temperature T1 by Temperature sampler Real-time Collection outdoor temperature sensor and the water tank temperature T2 of tank sensor, the morning 6:00-8:00 open the first water circulating pump, solar water heater starts to heat water tank;
C () microprocessor is the 7:00-11:00 time in the morning according to the situation of change being heated heat situation and the outdoor environment temperature T1 obtained in by solar water heater, prediction whole day before water use peak time t1 solar water heater the situation of change of outdoor environment temperature T1 of getable heat and whole day, and set up outdoor environment temperature-time function relation formula;
The total amount of heat of (d) microprocessor needed for whole day and heat the heat obtained according to the solar water heater that outdoor environment temperature-time function relation formula is predicted, microprocessor calculates the auxiliary heating amount needed by Teat pump boiler or gas heater heating;
E () microprocessor compares the economy of the heating of operating heat pump water heater and gas heater heating, with maximum Energy Efficiency Ratio for desired value, microprocessor is according to the instantaneous heating capacity-outdoor environment temperature of heat pump, the functional relation of water tank actual temperature and Energy Efficiency Ratio-outdoor environment temperature, the functional relation of water tank actual temperature, the medium temperature T4 of water tank 4 when calculating Teat pump boiler available machine time t2 and shut down, thus the total electricity consumption calculated needed for Teat pump boiler auxiliary heating, and calculate required electricity consumption totle drilling cost according to local electricity price, microprocessor calculates the required total gas consumption of operating gas water heater heating auxiliary heating, then required combustion gas totle drilling cost is calculated according to local gas price,
F () is as more economical in the heating of operating heat pump water heater, when the time arrives Teat pump boiler the best opening time t2, Teat pump boiler and the second water circulating pump bring into operation, when water tank temperature T2 arrives water tank medium temperature T4, Teat pump boiler and the second water circulating pump out of service, after this solar water heater and the first water circulating pump continue independent operating to reaching water temperature ceiling temperature T3; As more economical in the heating of operating gas water heater, then gas heater and the heating of the 3rd water circulating pump is directly opened when user uses.
In the technical program, when described microprocessor calculate adopt gas heater auxiliary heating more economical time, the control mode that auxiliary heating can also take Teat pump boiler and gas heater two sections of heating to combine, namely leading portion adopts Teat pump boiler auxiliary heating, back segment adopts gas heater auxiliary heating, and its rate-determining steps is as follows:
A () microprocessor calculates the medium temperature T4 that the low Teat pump boiler heating of relative gas heater heating cost can reach water tank further;
B () microprocessor calculates the best opening time t2 of Teat pump boiler when reaching medium temperature T4;
C (), when the time arrival Teat pump boiler best opening time t2 moment, Teat pump boiler and the second water circulating pump bring into operation;
(d) when water tank temperature T2 arrives medium temperature T4, Teat pump boiler and the second water circulating pump out of service, after this user directly opens gas heater and the 3rd water circulating pump is heated to water temperature ceiling temperature T3 further to water tank.
Compared with prior art, tool has the following advantages in the present invention:
(1) the getable heat of whole day solar energy heating can be predicted, utilize solar energy as much as possible;
(2) heat pump is in advance in best efficiency time period work, good energy-conserving effect;
(3) by the economic comparison of heat pump and gas heating, make auxiliary heating more economical.
Accompanying drawing explanation
Fig. 1 is control flow block diagram of the present invention;
Fig. 2 is the theory diagram of controller of the present invention;
Fig. 3 is structure principle chart of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
As shown in Figure 2, the hot-water heating system of solar energy, heat pump and combustion gas three kinds of energy compounds comprises solar water heater 1, Teat pump boiler 2, gas heater 3, water tank 4, controller 5, first water circulating pump 6, second water circulating pump 7 and the 3rd water circulating pump 8.Solar water heater 1, Teat pump boiler 2 and gas heater 3 control to heat water tank respectively by controller 5.
As shown in Figure 3, controller 5 is made up of Temperature sampler 51, microprocessor 52, input module 53 and outdoor environment temperature sensor T1, water tank temperature sensor T2.
Existing composition graphs 1, Fig. 2 and Fig. 3 describe clean energy resource composite hot-water system energy-saving control method in detail, the composite hot-water system energy-saving control method that it is a kind of solar energy, heat pump, combustion gas three kinds of hot water modes combine, and its step is as follows:
When () uses a, user inputs local electricity price, gas price, water use peak time t1 and water temperature ceiling temperature T3 by input module 53; If user does not input local electricity price, gas price, water use peak time t1 and water temperature ceiling temperature T3 by input module 53, system then gives tacit consent to input value during last use; Cross input module 53 for quantitative computing module, water use peak time t1 is generally a certain moment in 16:00-24:00;
(b) outdoor environment temperature T1 by Temperature sampler 51 Real-time Collection outdoor temperature sensor and the water tank temperature T2 of tank sensor, the morning 6:00-8:00 open the first water circulating pump 6, solar water heater 1 starts to heat water tank 4; In the present embodiment, generally open the first water circulating pump 6 at 7:00;
C () microprocessor 52 is the 7:00-11:00 time in the morning according to the situation of change being heated heat situation and the outdoor environment temperature T1 obtained in by solar water heater 1, prediction whole day before water use peak time t1 solar water heater 1 the situation of change of outdoor environment temperature T1 of getable heat and whole day, and set up outdoor environment temperature-time function relation formula;
The total amount of heat of (d) microprocessor 52 needed for whole day and heat the heat obtained according to the solar water heater 1 that outdoor environment temperature-time function relation formula is predicted, microprocessor 52 calculates the auxiliary heating amount needing to be heated by Teat pump boiler 2 or gas heater 3;
E () microprocessor 52 compares the economy that operating heat pump water heater 2 heats and gas heater 3 heats: with maximum Energy Efficiency Ratio for desired value, microprocessor 52 is according to the instantaneous heating capacity-outdoor environment temperature of heat pump, the functional relation of water tank actual temperature and Energy Efficiency Ratio-outdoor environment temperature, the functional relation of water tank actual temperature, the medium temperature T4 of water tank 4 when calculating Teat pump boiler 2 available machine time t2 and shut down, thus the total electricity consumption calculated needed for Teat pump boiler 2 auxiliary heating, and calculate required electricity consumption totle drilling cost according to local electricity price, microprocessor 52 calculates operating gas water heater 3 and heats the required total gas consumption of auxiliary heating, then required combustion gas totle drilling cost is calculated according to local gas price, medium temperature T4 is the temperature of t2 moment water tank 4 and the temperature rise sum of the water tank 4 calculated according to auxiliary heating gauge,
F () such as operating heat pump water heater 2 heats more economical, when the time arrives Teat pump boiler 2 the best opening time t2, Teat pump boiler 2 and the second water circulating pump 7 bring into operation, when water tank temperature T2 arrives water tank medium temperature T4, Teat pump boiler 2 and the second water circulating pump 7 out of service, after this solar water heater 1 and the first water circulating pump 6 continue independent operating to reaching water temperature ceiling temperature T3; As operating gas water heater 3 heats more economical, then directly open gas heater 3 when user uses and the 3rd water circulating pump 8 heats.
In the present embodiment, when described microprocessor 52 calculate adopt gas heater 3 auxiliary heating more economical time, the control mode that auxiliary heating can also take Teat pump boiler 2 and gas heater 3 two sections of heating to combine, namely leading portion adopts Teat pump boiler 2 auxiliary heating, back segment adopts gas heater 3 auxiliary heating, and its rate-determining steps is as follows:
A () microprocessor 52 calculates the medium temperature T4 that low Teat pump boiler 2 heating of relative gas heater 3 heating cost can reach water tank further;
B () microprocessor 52 calculates the best opening time t2 of Teat pump boiler 2 when reaching medium temperature T4;
C (), when the time arrival Teat pump boiler 2 best opening time t2 moment, Teat pump boiler 2 and the second water circulating pump 7 bring into operation;
(d) when water tank temperature T2 arrives medium temperature T4, Teat pump boiler 2 and the second water circulating pump 7 out of service, after this user directly opens gas heater 3 and the 3rd water circulating pump 8 pairs of water tanks 4 are heated to water temperature ceiling temperature T3 further.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and distortion to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (2)
1. an energy-saving control method for the hot-water heating system of solar energy, heat pump and combustion gas three kinds of energy compounds, is characterized in that rate-determining steps is as follows:
When () uses a, user is by electricity price, gas price, the water use peak time t1 and water temperature ceiling temperature T3 of input module (53) input locality; If user is not by electricity price, gas price, water use peak time t1 and water temperature ceiling temperature T3 that input module (53) input is local, system then gives tacit consent to input value during last use;
(b) outdoor environment temperature T1 by Temperature sampler (51) Real-time Collection outdoor temperature sensor and the water tank temperature T2 of tank sensor, the morning 6:00-8:00 open the first water circulating pump (6), solar water heater (1) starts to heat water tank (4);
C () microprocessor (52) is the 7:00-11:00 time in the morning according to the situation of change being heated heat situation and the outdoor environment temperature T1 obtained in by solar water heater (1), prediction whole day before water use peak time t1 solar water heater (1) the situation of change of outdoor environment temperature T1 of getable heat and whole day, and set up outdoor environment temperature-time function relation formula;
The total amount of heat of (d) microprocessor (52) needed for whole day and heat the heat obtained according to the solar water heater (1) that outdoor environment temperature-time function relation formula is predicted, microprocessor (52) calculates the auxiliary heating amount needing to be heated by Teat pump boiler (2) or gas heater (3);
E () microprocessor (52) compares the economy that operating heat pump water heater (2) heats and gas heater (3) heats, with maximum Energy Efficiency Ratio for desired value, microprocessor (52) is according to the instantaneous heating capacity-outdoor environment temperature of heat pump, the functional relation of water tank actual temperature and Energy Efficiency Ratio-outdoor environment temperature, the functional relation of water tank actual temperature, the medium temperature T4 of water tank 4 when calculating Teat pump boiler (2) available machine time t2 and shut down, thus the total electricity consumption calculated needed for Teat pump boiler (2) auxiliary heating, and calculate required electricity consumption totle drilling cost according to local electricity price, microprocessor (52) calculates the required total gas consumption of operating gas water heater (3) heating auxiliary heating, then required combustion gas totle drilling cost is calculated according to local gas price,
F () such as operating heat pump water heater (2) heats more economical, when the time arrives Teat pump boiler (2) the best opening time t2, Teat pump boiler (2) and the second water circulating pump (7) bring into operation, when water tank temperature T2 arrives water tank medium temperature T4, Teat pump boiler (2) and the second water circulating pump (7) out of service, after this solar water heater (1) and the first water circulating pump (6) continue independent operating to reaching water temperature ceiling temperature T3; As operating gas water heater (3) heats more economical, then directly open gas heater (3) and the heating of the 3rd water circulating pump (8) when user uses.
2. the energy-saving control method of the hot-water heating system of solar energy according to claim 1, heat pump and combustion gas three kinds of energy compounds, it is characterized in that: when described microprocessor (52) calculate adopt gas heater (3) auxiliary heating more economical time, auxiliary heating can also take Teat pump boiler (2) and gas heater (3) two sections of control modes that heating combines, namely leading portion adopts Teat pump boiler (2) auxiliary heating, back segment adopts gas heater (3) auxiliary heating, and its rate-determining steps is as follows:
A () microprocessor (52) calculates the medium temperature T4 that low Teat pump boiler (2) heating of relative gas heater (3) heating cost can reach water tank further;
B () microprocessor (52) calculates the best opening time t2 of Teat pump boiler when reaching medium temperature T4 (2);
C (), when time arrival Teat pump boiler (2) the best opening time t2 moment, Teat pump boiler (2) and the second water circulating pump (7) bring into operation;
D () is when water tank temperature T2 arrives medium temperature T4, Teat pump boiler (2) and the second water circulating pump (7) out of service, after this user directly opens gas heater (3) and the 3rd water circulating pump (8) is heated to water temperature ceiling temperature T3 further to water tank (4).
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| CN201510664525.XA CN105352190B (en) | 2015-10-16 | 2015-10-16 | The energy-saving control method of solar energy, heat pump and the compound hot-water heating system of three kinds of energy of combustion gas |
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| CN201510664525.XA CN105352190B (en) | 2015-10-16 | 2015-10-16 | The energy-saving control method of solar energy, heat pump and the compound hot-water heating system of three kinds of energy of combustion gas |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737379A (en) * | 2016-03-15 | 2016-07-06 | 丽水学院 | Control method of solar heat pump composite hot water system |
| CN106123360A (en) * | 2016-07-01 | 2016-11-16 | 顺德职业技术学院 | Heat pump obtains heat forecast Control Algorithm with solar energy in solar water heater combined system |
| WO2018000514A1 (en) * | 2016-07-01 | 2018-01-04 | 顺德职业技术学院 | Predictive control method for heat pump and solar-powered water heater combination system |
| CN108007704A (en) * | 2017-11-27 | 2018-05-08 | 中国市政工程华北设计研究总院有限公司 | Provide multiple forms of energy to complement each other heating system performance test methods and the used test device of a kind of regenerative resource-combustion gas alliance |
| CN109915886A (en) * | 2019-01-23 | 2019-06-21 | 深圳市合信达控制***有限公司 | A kind of control method of energy-saving heating equipment, system and energy-saving heating equipment |
| CN110081616A (en) * | 2019-05-13 | 2019-08-02 | 南京晶华智能科技有限公司 | A kind of water heater working control method and device |
| WO2019242284A1 (en) * | 2018-06-20 | 2019-12-26 | 广东美的暖通设备有限公司 | Multi-heat-source hot water unit, and method and apparatus for controlling multi-heat-source hot water unit |
| CN111426067A (en) * | 2020-04-30 | 2020-07-17 | 珠海格力电器股份有限公司 | Hot water supply system and control method thereof |
| CN112178940A (en) * | 2020-08-26 | 2021-01-05 | 青岛经济技术开发区海尔热水器有限公司 | Control method and device of dual-energy water heater, electronic equipment and storage medium |
| CN112377966A (en) * | 2020-10-20 | 2021-02-19 | 佛山市南海聚腾环保设备有限公司 | Energy-saving method and system for air energy heating equipment |
| CN112682841A (en) * | 2020-12-23 | 2021-04-20 | 沈阳工程学院 | Indoor temperature control method and control device for electric and thermal comprehensive heating |
| CN114322324A (en) * | 2021-12-29 | 2022-04-12 | 北京百度网讯科技有限公司 | Heating control method, heating control device, electronic device, and storage medium |
| WO2023024877A1 (en) * | 2021-08-27 | 2023-03-02 | 青岛经济技术开发区海尔热水器有限公司 | Control method for water heating system |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737379B (en) * | 2016-03-15 | 2018-05-11 | 丽水学院 | Solar heat pump composite hot-water system control method |
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| WO2019242284A1 (en) * | 2018-06-20 | 2019-12-26 | 广东美的暖通设备有限公司 | Multi-heat-source hot water unit, and method and apparatus for controlling multi-heat-source hot water unit |
| CN109915886A (en) * | 2019-01-23 | 2019-06-21 | 深圳市合信达控制***有限公司 | A kind of control method of energy-saving heating equipment, system and energy-saving heating equipment |
| CN110081616A (en) * | 2019-05-13 | 2019-08-02 | 南京晶华智能科技有限公司 | A kind of water heater working control method and device |
| CN111426067A (en) * | 2020-04-30 | 2020-07-17 | 珠海格力电器股份有限公司 | Hot water supply system and control method thereof |
| CN111426067B (en) * | 2020-04-30 | 2021-06-22 | 珠海格力电器股份有限公司 | Hot water supply system and control method thereof |
| CN112178940B (en) * | 2020-08-26 | 2022-08-16 | 青岛经济技术开发区海尔热水器有限公司 | Control method and device of dual-energy water heater, electronic equipment and storage medium |
| CN112178940A (en) * | 2020-08-26 | 2021-01-05 | 青岛经济技术开发区海尔热水器有限公司 | Control method and device of dual-energy water heater, electronic equipment and storage medium |
| CN112377966A (en) * | 2020-10-20 | 2021-02-19 | 佛山市南海聚腾环保设备有限公司 | Energy-saving method and system for air energy heating equipment |
| CN112682841A (en) * | 2020-12-23 | 2021-04-20 | 沈阳工程学院 | Indoor temperature control method and control device for electric and thermal comprehensive heating |
| WO2023024877A1 (en) * | 2021-08-27 | 2023-03-02 | 青岛经济技术开发区海尔热水器有限公司 | Control method for water heating system |
| CN114322324A (en) * | 2021-12-29 | 2022-04-12 | 北京百度网讯科技有限公司 | Heating control method, heating control device, electronic device, and storage medium |
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