CN102095221A - Temperature control method for multiple heat sources - Google Patents
Temperature control method for multiple heat sources Download PDFInfo
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- CN102095221A CN102095221A CN 201110047899 CN201110047899A CN102095221A CN 102095221 A CN102095221 A CN 102095221A CN 201110047899 CN201110047899 CN 201110047899 CN 201110047899 A CN201110047899 A CN 201110047899A CN 102095221 A CN102095221 A CN 102095221A
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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 discloses a temperature control method for multiple heat sources. In the control method, self-optimizing control over the temperature of multiple heat sources, namely different heat sources which are provided by solar energy, an air source heat pump hot water unit and an electric heating device, is realized, and the control goal is to meet the set required temperature, so that the temperature of the control goal remains the same during the control. By the temperature control method for the multiple heat sources, the environmentally-friendly energy, namely the solar energy, can be effectively utilized, and the air source heat pump hot water unit and the electric heating device can timely work according to control conditions when the solar energy supply cannot meet the requirement, so that the energy can be greatly saved while stable running of the entire system is guaranteed.
Description
Technical field
The invention belongs to technical field of new energies, relate to a kind of many thermals source and utilize method, especially a kind of temperature-controlled process that is used for many thermals source of hot-water supply.
Background technology
The modernization of World Economics has benefited from fossil energy, uses as the input widely of oil, natural gas, coal and nuclear fission energy.Thereby it is a kind of economy of building on the fossil energy basis.Yet, because this economic resource carrier will be in the promptly approaching exhaustion of the 21 century first half.The comprehensive estimate of petroleum reserves, the limit of governable fossil energy is approximately 1180～1,510 hundred million tons, with 33.2 hundred million tons of calculating of year yield of nineteen ninety-five world oil, petroleum reserves declaration exhaustion about about the year two thousand fifty greatly.Gas storage is estimated at 131800～152,900,000,000 cubic metres.If a year yield maintains 2,300 million cubic metres, will be exhausted in 57～65 years.The reserves of coal are about 5,600 hundred million tons.Nineteen ninety-five, the coal mining amount was 3,300,000,000 tons, can supply 169 years.The year yield of uranium is annual 60000 tons at present, can be maintained to the mid-1930s 21 century according to the estimation of the world energy sources committee in 1993.Nuclear fusion does not also have the hope of realization to the year two thousand fifty.The interruption of fossil energy and raw material chain will cause the aggravation of world crisis and conflict, finally ruins Modern Market Economy.Thereby adopt the continuable energy just to necessitate day by day, and then the present utilization that in engineering reality, has occurred solar energy in a large number, certainly for remedying the deficiency of use, toward the contact meeting air source heat pump or electrically heated boiler etc. is used as auxiliary thermal source, so just brought the practical problem of many thermals source application, and then brought the key problem in many thermals source application---the automatic optimal control of temperature.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, a kind of temperature-controlled process of many thermals source is provided, this method is by the work of the various thermals source of control, make the various thermals source can coordinated operation, when effectively utilizing green energy resource, make other energy as a supplement heat energy in time fill up the part of green energy resource energy supply deficiency, guarantee that whole system is stable.
The objective of the invention is to solve by the following technical programs:
The temperature-controlled process of thermal source more than this kind is: the different heat sources temperature that many thermals source provide is carried out automatic optimal control, and the target of control is to satisfy the temperature of setting that requires, thereby makes the temperature-resistant of control target under control procedure; Described many thermals source are solar energy, air-source heat pump hot water group and electric heater unit.
Further, above-mentioned control target is a hot water, hot water is connected with solar heat water circulation system, electric heater unit and air-source heat pump hot water group respectively, the water inlet of hot water is connected with running water pipe, and described running water water pipe is returned described solar water supply device and air-source heat pump hot water group supply running water; Controller is set, and described controller is controlled solar water supply device, air-source heat pump hot water group and electric heater unit respectively, and controller is by the liquid level and the water temperature of liquid level detection device and device for detecting temperature supervision hot water, and control method is as follows:
1) adds thermal control again after water tank temperature reduces
Water tank hot water is because long-time not use, when the water tank water temperature is lower than 5 ℃ of design temperatures, controller starts the solar heat water circulation system, stop after reaching design temperature, as overtime T1, described solar heat water circulation system does not stop yet, the recirculation heat pump that then starts the air heat source pump of air-source heat pump hot water group and its correspondence heating that circulates, aforementioned all circulations do not stop yet as overtime T2, the electrical heating circulation heat pump and the electric heater that then start electric heater unit heat, and stop when reaching the water tank design temperature;
2) temperature difference control between solar thermal collector and the water tank
The hot water of hot water is not owing to long-time use, when the solar energy heating actuator temperature and the water tank temperature temperature difference of solar heat water circulation system reach 8 ℃, and startup solar energy recirculation heating system, the temperature difference stops when reaching 3 ℃;
3) solar thermal collector freezing prevention protection control
The hot water of hot water is not owing to use for a long time, and when the solar energy heating actuator temperature dropped to 5 ℃, the anti-frost protection action started the solar heat water circulation system, and the solar energy heating actuator temperature stops when reaching 10 ℃; When if temperature continues to be lower than 4 ℃, start the solar-electricity heating tape, reach 12 ℃ of electric-heating belts and stop automatically.
Further, be liquid level one, liquid level two, liquid level three, liquid level four and liquid level five with the liquid level scale from top to bottom is set on the above-mentioned hot water, as follows according to the actual liquid level control of hot water:
(1) reach liquid level for the moment when the liquid level of hot water, stop all moisturizings, only carry out described 1 hot water) to 3) control operation;
(2) drop to when reaching liquid level two when the hot water liquid level, utilize top water motor-driven valve to carry out the top water management to solar thermal collector:
When the liquid level of hot water dropped to liquid level two the solar thermal collector water temperature reaches design temperature simultaneously, top water motor-driven valve was opened, to water tank jacking hot water, when the heat collector water temperature is lower than 5 ℃ of design temperatures, stop top water, circulate, reach liquid level one until high water tank according to above-mentioned control;
(3) when the hot water liquid level drops to liquid level three, solar thermal collector continues to work according to step (2); This moment the air-source heat pump hot water group the air heat source pump startup, air heat source pump booster pump starts, carry out the top water management to the air heat source pump, when air heat source pump water temperature reaches design temperature, to hot water jacking hot water, when air heat source pump water temperature is lower than 5 ℃ of design temperatures, stop top water, circulate according to above-mentioned control, reach liquid level for the moment, stop above-mentioned all top water management until the hot water liquid level;
(4) when the hot water liquid level drops to liquid level four, when proceeding step (2) and step (3); Start electric heater unit and to hot water supplemental heat water this moment, when the hot water temperature reaches design temperature liquid level is higher than liquid level four simultaneously, stops electric heater unit, repeats above-mentioned control when the liquid level of hot water is reduced to liquid level four;
(5) when the hot water liquid level drops to liquid level five, the water outlet water pump that all are connected with hot water quits work, and prevents that hot water from finding time.
The present invention has following beneficial effect:
It is solar energy that the temperature-controlled process of many thermals source of the present invention can effectively utilize green energy resource, and when the solar energy energy supply can not satisfy the demands, air-source heat pump hot water group and electric heater unit are filled according to controlled condition, thereby when guaranteeing that whole system is stable, can greatly save the energy.
Description of drawings
Fig. 1 is a kind of equipment connecting relation schematic diagram in the embodiment of the invention;
Fig. 2 is a hot water liquid level control schematic diagram of the present invention.
The specific embodiment
The temperature-controlled process of the many thermals source of this kind of the present invention is to be that different heat sources temperature that solar energy, air-source heat pump hot water group and electric heater unit provide is carried out automatic optimal control to many thermals source, the target of control is to satisfy the temperature of setting that requires, thereby makes the temperature-resistant of control target under control procedure.Be specially:
With above-mentioned control goal-setting is hot water, hot water is connected with solar heat water circulation system, electric heater unit and air-source heat pump hot water group respectively, the water inlet of hot water is connected with running water pipe, and the running water water pipe is returned solar water supply device and air-source heat pump hot water group supply running water; Controller is set, and controller is controlled solar water supply device, air-source heat pump hot water group and electric heater unit respectively, and controller is by the liquid level and the water temperature of liquid level detection device and device for detecting temperature supervision hot water, and control method is as follows:
1) adds thermal control again after water tank temperature reduces
Water tank hot water is because long-time not use, when the water tank water temperature is lower than 5 ℃ of design temperatures, controller starts the solar heat water circulation system, stop after reaching design temperature, as overtime T1, described solar heat water circulation system does not stop yet, the recirculation heat pump that then starts the air heat source pump of air-source heat pump hot water group and its correspondence heating that circulates, aforementioned all circulations do not stop yet as overtime T2, the electrical heating circulation heat pump and the electric heater that then start electric heater unit heat, and stop when reaching the water tank design temperature;
2) temperature difference control between solar thermal collector and the water tank
The hot water of hot water is not owing to long-time use, when the solar energy heating actuator temperature and the water tank temperature temperature difference of solar heat water circulation system reach 8 ℃, and startup solar energy recirculation heating system, the temperature difference stops when reaching 3 ℃;
3) solar thermal collector freezing prevention protection control
The hot water of hot water is not owing to use for a long time, and when the solar energy heating actuator temperature dropped to 5 ℃, the anti-frost protection action started the solar heat water circulation system, and the solar energy heating actuator temperature stops when reaching 10 ℃; When if temperature continues to be lower than 4 ℃, start the solar-electricity heating tape, reach 12 ℃ of electric-heating belts and stop automatically.
Control method of the present invention can also jointly control in conjunction with the liquid level of hot water, and following the present invention provides a kind of most preferred embodiment in conjunction with the accompanying drawings and is illustrated:
Fig. 1 is a kind of equipment connection diagram that realizes many thermals source combining heating system of control method of the present invention, and it comprises controller 1, hot water 2, solar heat water circulation system 3, electric heater unit 4 and air-source heat pump hot water group 5.Wherein solar heat water circulation system 3, electric heater unit 4 and air-source heat pump hot water group 5 are connected to form the heat cycles loop respectively by pipeline and hot water 1; The water inlet of hot water 1 is connected with in order to the running water pipe 6 that supplies water, and running water pipe 6 is that solar heat water circulation system 3 and air-source heat pump hot water group 5 supply water simultaneously; Hot water 1 is provided with Level monitor and the device for detecting temperature that is connected with described controller 1; Controller 1 also is connected with solar heat water circulation system 3, electric heater unit 4 and air-source heat pump hot water group 5 by control circuit respectively.Solar heat water circulation system 3 among the figure comprises solar thermal collector 3.1, solar water pump 3.2 and solar energy electric valve 3.3; The water inlet end of solar energy electric valve 3.3 connects running water pipe 6, and its water side is connected to the water inlet of solar thermal collector 3.1; The delivery port of solar thermal collector 3.1 is connected to hot water 2; The water inlet end of solar water pump 3.2 is connected in the hot water 2, and the water side of solar water pump 3.2 is connected to the water inlet of solar thermal collector 3.1, and solar water pump 3.2 receives the control of self-controller 1; Solar energy electric valve 3.3 is connected to controller 1 by control circuit; Controller 1 also connects solar thermal collector 3.1 in order to monitor its temperature by control circuit.
The control of above all devices all can switch to manual operation, realizes manual, unperturbed switching automatically.
Below in conjunction with the concrete equipment connection structure of Fig. 1,, water tank is controlled according to the liquid level of hot water based on above control method of the present invention.
At first, as shown in Figure 2, it is liquid level one, liquid level two, liquid level three, liquid level four and liquid level five that the liquid level scale from top to bottom is set on hot water, as follows according to the actual liquid level control of hot water:
(1) reach liquid level for the moment when the hot water liquid level, all moisturizings, top water management stop, and only carry out following subitem control:
1) adds thermal control again after the hot water temperature reduces;
Hot water hot water is because long-time not use, when the water tank water temperature is lower than 5 ℃ of design temperatures, start the solar energy recirculation heating system, stop after reaching design temperature, above-mentioned circulation does not stop yet as overtime T1, the recirculation heat pump that then starts air heat source pump and its correspondence heating that circulates, and aforementioned all circulations do not stop yet as overtime T2, then start electrical heating circulation heat pump and electric heater and heat, when reaching the water tank design temperature, stop.
2) temperature difference control between solar thermal collector and the hot water;
Hot water hot water is not owing to long-time use, when the heat collector temperature and the water tank temperature temperature difference reach 8 ℃, and startup solar energy recirculation heating system, the temperature difference stops when reaching 3 ℃.
2) solar thermal collector freezing prevention protection control;
The hot water of hot water is not owing to use for a long time, and when the heat collector temperature dropped to 5 ℃, the anti-frost protection action started the solar energy recirculation heating system, and the heat collector temperature stops when reaching 10 ℃; When if temperature continues to be lower than 4 ℃, start electric-heating belt, reach 12 ℃ of electric-heating belts and stop automatically.
(2) when the hot water liquid level drops to liquid level two, utilize top water motor-driven valve to carry out the top water management to solar thermal collector;
Heat collector constant temperature top water management;
When liquid level drops to liquid level two, when the heat collector water temperature reached design temperature simultaneously, top water motor-driven valve was opened, to water tank jacking hot water, when the heat collector water temperature is lower than 5 ℃ of design temperatures, stop top water, circulate according to above-mentioned control, reach liquid level for the moment, stop above-mentioned control until high water tank.
When (3) high water tank drops to liquid level three, solar thermal collector continues to work according to step (2), this moment the air-source heat pump hot water group the air heat source pump startup, air heat source pump booster pump starts, top water motor-driven valve is opened to the air heat source pump and is carried out top water management (because heat collector undercapacity or water consumption are excessive, therefore causing liquid level to drop to 3);
Air heat source pump constant temperature top water management (this moment, heat collector constant temperature top water management still continued) specific as follows:
Liquid level drops to liquid level three, start the air heat source pump, when air heat source pump water temperature reaches design temperature, top water motor-driven valve is opened, to water tank jacking hot water, when air heat source pump water temperature is lower than 5 ℃ of design temperatures, stop top water, circulate according to above-mentioned control, reach liquid level for the moment, stop above-mentioned all top water management until the hot water liquid level.
(4) when the hot water liquid level drops to liquid level four, the electrical heating loop control that electric heater unit forms starts, water tank moisturizing motor-driven valve is opened and is carried out moisturizing circulation to water tank and add thermal control (because heat collector, air heat source pump the power deficiency or water consumption is excessive, therefore causing liquid level to drop to liquid level four);
Electrical heating moisturizing circulation adds thermal control (heat collector, air heat source pump constant temperature top water management still continue at this moment);
When liquid level drops to liquid level four, start the electrical heating circulating pump and the electric heater of electric heater unit, the moisturizing motor-driven valve cut out and stops when startup moisturizing motor-driven valve was supplemented to liquid level three with the hot water liquid level, the hot water temperature reached when the design temperature while, liquid level was higher than liquid level four, stop electric heater, stop the electrical heating circulating pump, repeat above-mentioned control (heat collector, air heat source pump constant temperature top water management still continue at this moment) when reducing to liquid level four, when high water tank reaches liquid level four, stop above-mentioned all top water management.
When (5) the hot water liquid level dropped to liquid level five, all water pumps that are connected with hot water quit work, and prevented find time protection control of water pump;
By above control method as can be known, in the present invention, solar energy and air heat source pump are as the normal heating thermal source, and electric boiler is as auxiliary thermal source.
Claims (3)
1. the temperature-controlled process of thermal source more than a kind is characterized in that: the different heat sources temperature that many thermals source provide is carried out automatic optimal control, and the target of control is to satisfy the temperature of setting that requires, thereby makes the temperature-resistant of control target under control procedure; Described many thermals source are solar energy, air-source heat pump hot water group and electric heater unit.
2. the temperature-controlled process of many thermals source according to claim 1, it is characterized in that: described control target is a hot water, hot water is connected with solar heat water circulation system, electric heater unit and air-source heat pump hot water group respectively, the water inlet of hot water is connected with running water pipe, and described running water water pipe is returned described solar water supply device and air-source heat pump hot water group supply running water; Controller is set, and described controller is controlled solar water supply device, air-source heat pump hot water group and electric heater unit respectively, and controller is by the liquid level and the water temperature of liquid level detection device and device for detecting temperature supervision hot water, and control method is as follows:
1) adds thermal control again after the hot water temperature reduces
Hot water hot water is because long-time not use, when the water tank water temperature is lower than 5 ℃ of design temperatures, controller starts the solar heat water circulation system, stop after reaching design temperature, as overtime T1, described solar heat water circulation system does not stop yet, the recirculation heat pump that then starts the air heat source pump of air-source heat pump hot water group and its correspondence heating that circulates, aforementioned all circulations do not stop yet as overtime T2, the electrical heating circulation heat pump and the electric heater that then start electric heater unit heat, and stop when reaching the water tank design temperature;
2) temperature difference control between solar thermal collector and the water tank
The hot water of hot water is not owing to long-time use, when the solar energy heating actuator temperature and the water tank temperature temperature difference of solar heat water circulation system reach 8 ℃, and startup solar energy recirculation heating system, the temperature difference stops when reaching 3 ℃;
3) solar thermal collector freezing prevention protection control
The hot water of hot water is not owing to use for a long time, and when the solar energy heating actuator temperature dropped to 5 ℃, the anti-frost protection action started the solar heat water circulation system, and the solar energy heating actuator temperature stops when reaching 10 ℃; When if temperature continues to be lower than 4 ℃, start the solar-electricity heating tape, reach 12 ℃ of electric-heating belts and stop automatically.
3. the temperature-controlled process of many thermals source according to claim 2, it is characterized in that: it is liquid level one, liquid level two, liquid level three, liquid level four and liquid level five that the liquid level scale from top to bottom is set on described hot water, as follows according to the actual liquid level control of hot water:
(1) reach liquid level for the moment when the liquid level of hot water, stop all moisturizings, only carry out described 1 hot water) to 3) control operation;
(2) drop to when reaching liquid level two when the hot water liquid level, utilize top water motor-driven valve to carry out the top water management to solar thermal collector:
When the liquid level of hot water dropped to liquid level two the solar thermal collector water temperature reaches design temperature simultaneously, top water motor-driven valve was opened, to water tank jacking hot water, when the heat collector water temperature is lower than 5 ℃ of design temperatures, stop top water, circulate, reach liquid level one until high water tank according to above-mentioned control;
(3) when the hot water liquid level drops to liquid level three, solar thermal collector continues to work according to step (2); This moment the air-source heat pump hot water group the air heat source pump startup, air heat source pump booster pump starts, carry out the top water management to the air heat source pump, when air heat source pump water temperature reaches design temperature, to hot water jacking hot water, when air heat source pump water temperature is lower than 5 ℃ of design temperatures, stop top water, circulate according to above-mentioned control, reach liquid level for the moment, stop above-mentioned all top water management until the hot water liquid level;
(4) when the hot water liquid level drops to liquid level four, when proceeding step (2) and step (3); Start electric heater unit and to hot water supplemental heat water this moment, when the hot water temperature reaches design temperature liquid level is higher than liquid level four simultaneously, stops electric heater unit, repeats above-mentioned control when the liquid level of hot water is reduced to liquid level four;
(5) when the hot water liquid level drops to liquid level five, the water outlet water pump that all are connected with hot water quits work, and prevents that hot water from finding time.
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| CN 201110047899 CN102095221A (en) | 2011-02-28 | 2011-02-28 | Temperature control method for multiple heat sources |
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| CN 201110047899 CN102095221A (en) | 2011-02-28 | 2011-02-28 | Temperature control method for multiple heat sources |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456702A (en) * | 2013-09-22 | 2015-03-25 | 苏州苏宝新能源科技有限公司 | Full-glass tube type solar centralized hot water supplying system |
| CN105180454A (en) * | 2015-10-10 | 2015-12-23 | 珠海格力电器股份有限公司 | Water heater and control method and device thereof |
| CN105333492A (en) * | 2014-06-17 | 2016-02-17 | 青岛经济技术开发区海尔热水器有限公司 | Heat source control method of multi-heat-source heat supply system |
| CN108980978A (en) * | 2018-08-14 | 2018-12-11 | 山东国辰实业集团有限公司 | A kind of multi-heat source detection switching unit and switching method based on cloud intelligence |
| CN114995547A (en) * | 2022-06-17 | 2022-09-02 | 深圳市汉海节能科技有限公司 | Energy-conserving water supply control system based on solar energy |
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| CN1821678A (en) * | 2006-03-24 | 2006-08-23 | 赵振田 | Multiple heat source automatic hot water supply system |
| CN201007524Y (en) * | 2006-07-07 | 2008-01-16 | 深圳市晴尔太阳能科技有限公司 | Solar and heat pump energy source complementary hot water supplying device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1821678A (en) * | 2006-03-24 | 2006-08-23 | 赵振田 | Multiple heat source automatic hot water supply system |
| CN201007524Y (en) * | 2006-07-07 | 2008-01-16 | 深圳市晴尔太阳能科技有限公司 | Solar and heat pump energy source complementary hot water supplying device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456702A (en) * | 2013-09-22 | 2015-03-25 | 苏州苏宝新能源科技有限公司 | Full-glass tube type solar centralized hot water supplying system |
| CN105333492A (en) * | 2014-06-17 | 2016-02-17 | 青岛经济技术开发区海尔热水器有限公司 | Heat source control method of multi-heat-source heat supply system |
| CN105333492B (en) * | 2014-06-17 | 2018-06-26 | 青岛经济技术开发区海尔热水器有限公司 | The heat source control method of multi-source heating system |
| CN105180454A (en) * | 2015-10-10 | 2015-12-23 | 珠海格力电器股份有限公司 | Water heater and control method and device thereof |
| CN105180454B (en) * | 2015-10-10 | 2018-11-06 | 珠海格力电器股份有限公司 | Water heater and its control method and device |
| CN108980978A (en) * | 2018-08-14 | 2018-12-11 | 山东国辰实业集团有限公司 | A kind of multi-heat source detection switching unit and switching method based on cloud intelligence |
| CN114995547A (en) * | 2022-06-17 | 2022-09-02 | 深圳市汉海节能科技有限公司 | Energy-conserving water supply control system based on solar energy |
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Application publication date: 20110615 |