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CN202792191U - Solar central hot water system heated by air source heat pump and boiler heating in auxiliary manner - Google Patents

Solar central hot water system heated by air source heat pump and boiler heating in auxiliary manner Download PDF

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CN202792191U
CN202792191U CN2012204786325U CN201220478632U CN202792191U CN 202792191 U CN202792191 U CN 202792191U CN 2012204786325 U CN2012204786325 U CN 2012204786325U CN 201220478632 U CN201220478632 U CN 201220478632U CN 202792191 U CN202792191 U CN 202792191U
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boiler
hot water
heat pump
air source
source heat
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罗小林
陈华山
罗雅楠
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Kunming University of Science and Technology
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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
    • 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
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

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Abstract

本实用新型涉及一种空气源热泵与锅炉辅助加热的太阳能集中热水系统，属于供热技术领域。本实用新型包括太阳能集热器组、贮热水箱、冷水补水箱、保温水箱、空气源热泵机组、换热机组、锅炉；太阳能集热器组通过贮热水箱与保温水箱连接，冷水补水箱与贮热水箱连接，保温水箱分别于空气源热泵机组、锅炉连接，锅炉与换热机组连接。本实用新型以太阳能、空气能作为热源，取之不尽，用之不竭，是一种理想的热水装置和供暖设备；极端天气，可采用常规的锅炉来辅助加热，保证供热可靠性，经济性价值高，可全天运行，有良好的环境效益和社会效益；符合我国能源可持续发展战略，值得推广。

Figure 201220478632

The utility model relates to a solar concentrated hot water system for auxiliary heating of an air source heat pump and a boiler, which belongs to the technical field of heating. The utility model includes a solar heat collector group, a hot water storage tank, a cold water replenishment tank, a heat preservation water tank, an air source heat pump unit, a heat exchange unit, and a boiler; the solar heat collector group is connected with the heat preservation water tank through the heat storage tank, and the cold water replenishment The tank is connected to the hot water storage tank, the heat preservation water tank is connected to the air source heat pump unit and the boiler respectively, and the boiler is connected to the heat exchange unit. The utility model uses solar energy and air energy as heat sources, which are inexhaustible and inexhaustible. It is an ideal hot water device and heating equipment; in extreme weather, conventional boilers can be used to assist heating to ensure the reliability of heating. , high economic value, can run all day, has good environmental and social benefits; in line with my country's energy sustainable development strategy, it is worth promoting.

Figure 201220478632

Description

一种空气源热泵与锅炉辅助加热的太阳能集中热水系统A solar centralized hot water system with air source heat pump and boiler auxiliary heating

技术领域 technical field

本实用新型涉及一种太阳能集中热水系统，具体涉及一种空气源热泵与锅炉辅助加热的太阳能集中热水系统，属于供热技术领域。 The utility model relates to a solar concentrated hot water system, in particular to a solar concentrated hot water system with an air source heat pump and boiler auxiliary heating, belonging to the technical field of heating.

背景技术 Background technique

太阳能作为一种取之不尽的新型清洁能源，在建筑领域已经开发并利用在热水、采暖、照明、制冷、电力等多个方面。尤其在太阳能光热利用方面，太阳能与建筑一体化逐渐成为我国太阳能热利用的发展方向，已经取得了很好的节能效果。但随着季节的变化，特别是晴天及阴雨天的变化，太阳能辐射量变化较大，因此，太阳能集热器产热量变化较大，必须设置辅助热源。空气源热泵热水系统依据逆卡诺循环原理，充分吸收空气中的热量，热效率可达到300％～400％,其高效节能的特性也越来越受到人们的青睐。将空气源热泵作为太阳能热水器的辅助热源，两者结合使用，节能率将会达到80％～85％，具有良好的节能效果。目前，在人们的生产生活当中，锅炉供热仍然是主流，尤其是燃煤锅炉占有相当大的比例。在我国大力倡导节能减排、加快推进能源结构调整的形势下，以锅炉为主的供热系统已经不能适应时代的发展需要。 As an inexhaustible new type of clean energy, solar energy has been developed and utilized in many aspects such as hot water, heating, lighting, refrigeration, and electricity in the construction field. Especially in terms of solar thermal utilization, the integration of solar energy and buildings has gradually become the development direction of solar thermal utilization in my country, and has achieved good energy-saving effects. However, with the change of seasons, especially the change of sunny and rainy days, the amount of solar radiation changes greatly. Therefore, the heat output of solar collectors varies greatly, and an auxiliary heat source must be installed. The air source heat pump hot water system is based on the reverse Carnot cycle principle, fully absorbs the heat in the air, and the thermal efficiency can reach 300% to 400%. Its high efficiency and energy saving characteristics are becoming more and more popular among people. If the air source heat pump is used as the auxiliary heat source of the solar water heater, the energy saving rate will reach 80% to 85%, which has a good energy saving effect. At present, in people's production and life, boiler heating is still the mainstream, especially coal-fired boilers occupy a considerable proportion. Under the situation that our country is vigorously advocating energy conservation and emission reduction, and accelerating the adjustment of energy structure, the heating system based on boilers can no longer meet the development needs of the times.

发明内容 Contents of the invention

本实用新型的目的是通过利用太阳能和热泵技术提供一种空气源热泵与锅炉辅助加热的太阳能集中热水系统，以保证供热需求。 The purpose of this utility model is to provide a solar centralized hot water system with air source heat pump and boiler auxiliary heating by utilizing solar energy and heat pump technology to ensure heating demand.

本实用新型按以下技术方案实现：一种空气源热泵与锅炉辅助加热的太阳能集中热水系统，包括太阳能集热器组1、贮热水箱2、冷水补水箱4、保温水箱5、空气源热泵机组8、换热机组12、锅炉14；太阳能集热器组1通过贮热水箱2与保温水箱5连接，冷水补水箱4与贮热水箱2连接，保温水箱5分别于空气源热泵机组8、锅炉14连接，锅炉14与换热机组12连接。 The utility model is realized according to the following technical scheme: a solar concentrated hot water system with an air source heat pump and boiler auxiliary heating, including a solar collector group 1, a hot water storage tank 2, a cold water replenishment tank 4, a heat preservation water tank 5, and an air source Heat pump unit 8, heat exchange unit 12, boiler 14; solar collector unit 1 is connected to heat preservation water tank 5 through hot water storage tank 2, cold water replenishment tank 4 is connected to heat storage tank 2, heat preservation water tank 5 is respectively connected to air source heat pump The unit 8 is connected to the boiler 14, and the boiler 14 is connected to the heat exchange unit 12.

所述贮热水箱2下侧输出处的管道上安设有集热循环泵3，保温水箱2通过管道及集热循环泵3与太阳能集热器组l连接。所述贮热水箱2与保温水箱5的连接管道上设有循环泵6。所述保温水箱5与空气源热泵机组8的连接管道上设有热泵循环泵7，保温水箱5下端入口管道上安设有热水循环泵17。所述锅炉14的入口设有给水管16，出口设有蒸汽管道13，给水管16上设有给水泵15，保温水箱5通过给水泵15、给水管16与锅炉14连接。所述保温水箱5出口设有供热管道，供热管道上安设有电动调节阀Ⅰ9，电动调节阀Ⅰ9的两侧也设有供热管道、其分别安设有电动调节阀Ⅱ10、电动调节阀Ⅲ11，电动调节阀Ⅱ10、电动调节阀Ⅲ11分别通过管道与换热机组12连接。 The pipeline at the output of the lower side of the hot water storage tank 2 is equipped with a heat collection circulation pump 3, and the thermal insulation water tank 2 is connected with the solar heat collector group 1 through the pipeline and the heat collection circulation pump 3. A circulation pump 6 is provided on the connecting pipe between the hot water storage tank 2 and the heat preservation water tank 5 . A heat pump circulation pump 7 is provided on the connecting pipe between the heat preservation water tank 5 and the air source heat pump unit 8 , and a hot water circulation pump 17 is installed on the inlet pipe at the lower end of the heat preservation water tank 5 . The inlet of the boiler 14 is provided with a water supply pipe 16, the outlet is provided with a steam pipe 13, the water supply pipe 16 is provided with a feedwater pump 15, and the heat preservation water tank 5 is connected with the boiler 14 through the feedwater pump 15 and the water supply pipe 16. The outlet of the heat preservation water tank 5 is provided with a heat supply pipeline, and an electric control valve I9 is installed on the heat supply pipeline, and the two sides of the electric control valve I9 are also provided with a heat supply pipeline, which are respectively equipped with an electric control valve II10, an electric control valve The valve III11, the electric regulating valve II10, and the electric regulating valve III11 are respectively connected to the heat exchange unit 12 through pipelines.

所述太阳能集热器组1采用CPC反光镜面U形真空管集热器，型号为CPC1518，其规格为2130mm×1640mm。 The solar heat collector group 1 adopts a CPC reflective U-shaped vacuum tube heat collector, the model is CPC1518, and its specification is 2130mm×1640mm.

一种空气源热泵与锅炉辅助加热的太阳能集中热水系统的工作原理为：太阳能集热器组1出口水温达到设定值时，启动集热循环泵3，热水被送入贮热水箱2。一旦贮热水箱2水位降低，冷水补水箱4可及时补充水。另外系统采用贮热水箱2和保温水箱5双水箱系统，通过控制循环泵6，保证了热水的质量。当保温水箱5水温达到用户需求时，空气源热泵机组8不启动；当达不到用户要求时，启动空气源热泵机组8，通过热泵循环泵7强制循环加热。若遇到极端天气时，太阳能和热泵无法满足用户生活热水、生产供热采暖需求时，采用锅炉14进行补充加热，一般采用燃煤蒸汽锅炉，此时，电动调节阀Ⅰ9不工作，电动调节阀Ⅱ10和电动调节阀Ⅲ11工作，通过蒸汽管道13与换热机组12，把从保温水箱5输出的热水进一步加热直到满足要求，供热回水通过热水循环泵17回到保温水箱5。锅炉14若需要补水，可以启动给水泵15把保温水箱5中的水输送到锅炉14转化为蒸汽，保温水箱5的水带有一定的热量，从而节省了一次能源的消耗，节省成本，也保护了环境。 The working principle of a solar concentrated hot water system with air source heat pump and boiler auxiliary heating is as follows: when the water temperature at the outlet of the solar collector group 1 reaches the set value, the heat collecting circulation pump 3 is started, and the hot water is sent to the hot water storage tank 2. Once the water level of the hot water storage tank 2 decreases, the cold water replenishment tank 4 can replenish water in time. In addition, the system adopts a double water tank system of hot water storage tank 2 and heat preservation water tank 5, and by controlling the circulation pump 6, the quality of hot water is guaranteed. When the water temperature of the heat preservation water tank 5 meets the user's requirement, the air source heat pump unit 8 does not start; In case of extreme weather, when the solar energy and the heat pump cannot meet the user’s domestic hot water and production heating needs, the boiler 14 is used for supplementary heating, generally using a coal-fired steam boiler. At this time, the electric control valve Ⅰ9 does not work, and the electric control The valve II10 and the electric control valve III11 work, through the steam pipeline 13 and the heat exchange unit 12, the hot water output from the heat preservation water tank 5 is further heated until it meets the requirements, and the heating return water is returned to the heat preservation water tank 5 through the hot water circulation pump 17. If the boiler 14 needs to replenish water, the feed water pump 15 can be started to transport the water in the thermal insulation water tank 5 to the boiler 14 to be converted into steam. the environment.

本实用新型具有以下有益效果： The utility model has the following beneficial effects:

1、以太阳能、空气能作为热源，取之不尽，用之不竭，是一种理想的热水装置和供暖设备； 1. With solar energy and air energy as heat sources, it is inexhaustible and inexhaustible. It is an ideal hot water device and heating equipment;

2、极端天气，可采用常规的锅炉来辅助加热，保证供热可靠性，经济性价值高，可全天运行，有良好的环境效益和社会效益； 2. In extreme weather, conventional boilers can be used to assist heating to ensure the reliability of heating supply, high economic value, and can be operated all day long, with good environmental and social benefits;

3、符合我国能源可持续发展战略，值得推广。 3. It is in line with my country's energy sustainable development strategy and is worthy of promotion.

附图说明 Description of drawings

图1为本实用新型的结构示意图。 Fig. 1 is the structural representation of the utility model.

图中各标号为：1：太阳能集热器组、2：贮热水箱、3：集热循环泵、4：冷水补水箱、5：保温水箱、 6：循环泵Ⅰ、7：热泵循环泵、8：空气源热泵机组、9：电动调节阀、10：电动调节阀、11：电动调节阀、12：换热机组、13：蒸汽管道、14：锅炉、15：给水泵、16：给水管、17：热水循环泵。 The labels in the figure are: 1: solar collector group, 2: hot water storage tank, 3: heat collecting circulation pump, 4: cold water replenishment tank, 5: thermal insulation water tank, 6: circulation pump Ⅰ, 7: heat pump circulation pump , 8: Air source heat pump unit, 9: Electric control valve, 10: Electric control valve, 11: Electric control valve, 12: Heat exchange unit, 13: Steam pipeline, 14: Boiler, 15: Feed water pump, 16: Water supply pipe , 17: hot water circulation pump.

具体实施方式 Detailed ways

下面结合附图和实施例，对本实用新型作进一步说明，但本实用新型的内容并不限于所述范围。 Below in conjunction with accompanying drawing and embodiment, the utility model will be further described, but the content of the utility model is not limited to said range.

实施例1：如图1所示，一种空气源热泵与锅炉辅助加热的太阳能集中热水系统，包括太阳能集热器组1、贮热水箱2、冷水补水箱4、保温水箱5、空气源热泵机组8、换热机组12、锅炉14；太阳能集热器组1通过贮热水箱2与保温水箱5连接，冷水补水箱4与贮热水箱2连接，保温水箱5分别于空气源热泵机组8、锅炉14连接，锅炉14与换热机组12连接。 Embodiment 1: As shown in Figure 1, a solar centralized hot water system with air source heat pump and boiler auxiliary heating, including solar collector group 1, hot water storage tank 2, cold water replenishment tank 4, heat preservation water tank 5, air Source heat pump unit 8, heat exchange unit 12, boiler 14; solar collector unit 1 is connected to heat preservation water tank 5 through hot water storage tank 2, cold water replenishment tank 4 is connected to heat storage tank 2, heat preservation water tank 5 is connected to air source The heat pump unit 8 is connected to the boiler 14 , and the boiler 14 is connected to the heat exchange unit 12 .

贮热水箱2下侧输出处的管道上安设有集热循环泵3，保温水箱2通过管道及集热循环泵3与太阳能集热器组l连接。贮热水箱2与保温水箱5的连接管道上设有循环泵6。所述保温水箱5与空气源热泵机组8的连接管道上设有热泵循环泵7，保温水箱5下端入口管道上安设有热水循环泵17。锅炉14的入口设有给水管16，出口设有蒸汽管道13，给水管16上设有给水泵15，保温水箱5通过给水泵15、给水管16与锅炉14连接。保温水箱5出口设有供热管道，供热管道上安设有电动调节阀Ⅰ9，电动调节阀Ⅰ9的两侧也设有供热管道、其分别安设有电动调节阀Ⅱ10、电动调节阀Ⅲ11，电动调节阀Ⅱ10、电动调节阀Ⅲ11分别通过管道与换热机组12连接。 The heat collecting circulation pump 3 is arranged on the pipeline at the outlet of the lower side of the hot water storage tank 2, and the thermal insulation water tank 2 is connected with the solar heat collector group 1 through the pipeline and the heat collecting circulation pump 3. A circulation pump 6 is provided on the connecting pipe between the hot water storage tank 2 and the heat preservation water tank 5 . A heat pump circulation pump 7 is provided on the connecting pipe between the heat preservation water tank 5 and the air source heat pump unit 8 , and a hot water circulation pump 17 is installed on the inlet pipe at the lower end of the heat preservation water tank 5 . The inlet of the boiler 14 is provided with a water supply pipe 16 , the outlet is provided with a steam pipe 13 , the water supply pipe 16 is provided with a water supply pump 15 , and the thermal insulation water tank 5 is connected with the boiler 14 through the water supply pump 15 and the water supply pipe 16 . The outlet of heat preservation water tank 5 is provided with a heating pipe, and an electric regulating valve Ⅰ9 is installed on the heating pipe. There are also heating pipes on both sides of the electric regulating valve Ⅰ9, and electric regulating valve Ⅱ10 and electric regulating valve Ⅲ11 are installed respectively. , the electric control valve II10 and the electric control valve III11 are respectively connected to the heat exchange unit 12 through pipelines.

Claims (6)

1. the solar energy central hot water system of an air source heat pump and boiler auxiliary heating is characterized in that: comprise solar thermal collector group (1), thermal storage water tank (2), cold water water supply tank (4), attemperater (5), net for air-source heat pump units (8), heat exchange unit (12), boiler (14); Solar thermal collector group (1) is connected with attemperater (5) by thermal storage water tank (2), cold water water supply tank (4) is connected with thermal storage water tank (2), attemperater (5) is connected with net for air-source heat pump units (8), boiler (14) respectively, and boiler (14) is connected with heat exchange unit (12).
2. the solar energy central hot water system of air source heat pump according to claim 1 and boiler auxiliary heating, it is characterized in that: be installed on thermal-arrest circulating pump (3) on the pipeline of described thermal storage water tank (2) downside output place, attemperater (2) is connected with solar thermal collector group (l) by pipeline and thermal-arrest circulating pump (3).
3. the solar energy central hot water system of air source heat pump according to claim 1 and boiler auxiliary heating is characterized in that: described thermal storage water tank (2) is provided with circulating pump (6) with the connecting pipe of attemperater (5).
4. the solar energy central hot water system of air source heat pump according to claim 1 and boiler auxiliary heating, it is characterized in that: described attemperater (5) is provided with heat pump cycle pump (7) with the connecting pipe of net for air-source heat pump units (8), is installed on hot water circulating pump (17) on the inlet duct of attemperater (5) lower end.
5. the solar energy central hot water system of air source heat pump according to claim 1 and boiler auxiliary heating, it is characterized in that: the entrance of described boiler (14) is provided with feed pipe (16), outlet is provided with jet chimney (13), feed pipe (16) is provided with feed pump (15), and attemperater (5) is connected with boiler (14) by feed pump (15), feed pipe (16).
6. the solar energy central hot water system of air source heat pump according to claim 1 and boiler auxiliary heating, it is characterized in that: described attemperater (5) outlet is provided with heat supply pipeline, be installed on electric control valve I (9) on the heat supply pipeline, the both sides of electric control valve I (9) also are provided with heat supply pipeline, it is installed on respectively electric control valve II (10), electric control valve III (11), and electric control valve II (10), electric control valve III (11) are connected with heat exchange unit (12) by pipeline respectively.
CN2012204786325U 2012-09-19 2012-09-19 Solar central hot water system heated by air source heat pump and boiler heating in auxiliary manner Expired - Fee Related CN202792191U (en)

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CN103604251A (en) * 2013-10-22 2014-02-26 浙江大学 Double-arrangement type heat pump solar industrial boiler thermodynamic system and method thereof
CN103621425A (en) * 2013-11-27 2014-03-12 张�诚 Method for incubation and production through combination of solar energy and air energy or through application of solar energy in series connection with boiler
CN105180415A (en) * 2015-09-21 2015-12-23 成都申川节能环保工程有限公司 Solar boiler constant-temperature energy conservation control system capable of conducting composite amplification type temperature detection
CN105180453A (en) * 2015-09-21 2015-12-23 成都申川节能环保工程有限公司 Solar boiler energy-saving control system based on low-frequency oscillation saturation manner
CN105258330A (en) * 2015-09-21 2016-01-20 成都申川节能环保工程有限公司 Adjustable constant-temperature energy-saving control system integrating solar energy and boiler
CN105650724A (en) * 2016-03-17 2016-06-08 金田集团（桐城）塑业有限公司 Energy-saving type central hot water concentrated supplying device
CN105674371A (en) * 2015-12-30 2016-06-15 中铁二十一局集团第二工程有限公司 Solar heating system, multi-heat-source heating system and multi-heat-source heat supply method
CN105783277A (en) * 2016-03-17 2016-07-20 上海市建筑科学研究院(集团)有限公司 Solar water heating system assisting heating through air source heat pump and boiler and control method
CN106196258A (en) * 2016-06-28 2016-12-07 四川自然道节能科技有限公司 Heating water and saving energy system and control method thereof
CN106292408A (en) * 2015-06-01 2017-01-04 南京索乐优节能科技有限公司 A kind of multiple-energy-sources based on RSMC's data comprehensive utilization control system
CN106949637A (en) * 2017-04-28 2017-07-14 桂林医学院 A kind of small scall coal-fired boiler hot water apparatus
CN108413628A (en) * 2018-02-06 2018-08-17 杭州龙华环境集成系统有限公司 A kind of solar energy couples hot-water heating system and its control method with air source heat pump
CN109827221A (en) * 2018-11-28 2019-05-31 东北电力大学 A modular combined intelligent heating system based on multiple clean energy sources

Cited By (14)

* Cited by examiner, † Cited by third party
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CN103604251A (en) * 2013-10-22 2014-02-26 浙江大学 Double-arrangement type heat pump solar industrial boiler thermodynamic system and method thereof
CN103621425A (en) * 2013-11-27 2014-03-12 张�诚 Method for incubation and production through combination of solar energy and air energy or through application of solar energy in series connection with boiler
CN106292408A (en) * 2015-06-01 2017-01-04 南京索乐优节能科技有限公司 A kind of multiple-energy-sources based on RSMC's data comprehensive utilization control system
CN105180453A (en) * 2015-09-21 2015-12-23 成都申川节能环保工程有限公司 Solar boiler energy-saving control system based on low-frequency oscillation saturation manner
CN105258330A (en) * 2015-09-21 2016-01-20 成都申川节能环保工程有限公司 Adjustable constant-temperature energy-saving control system integrating solar energy and boiler
CN105180415A (en) * 2015-09-21 2015-12-23 成都申川节能环保工程有限公司 Solar boiler constant-temperature energy conservation control system capable of conducting composite amplification type temperature detection
CN105674371A (en) * 2015-12-30 2016-06-15 中铁二十一局集团第二工程有限公司 Solar heating system, multi-heat-source heating system and multi-heat-source heat supply method
CN105650724A (en) * 2016-03-17 2016-06-08 金田集团（桐城）塑业有限公司 Energy-saving type central hot water concentrated supplying device
CN105783277A (en) * 2016-03-17 2016-07-20 上海市建筑科学研究院(集团)有限公司 Solar water heating system assisting heating through air source heat pump and boiler and control method
CN105783277B (en) * 2016-03-17 2018-10-02 上海市建筑科学研究院(集团)有限公司 The solar water heating system and control method of air source heat pump and boiler auxiliary heating
CN106196258A (en) * 2016-06-28 2016-12-07 四川自然道节能科技有限公司 Heating water and saving energy system and control method thereof
CN106949637A (en) * 2017-04-28 2017-07-14 桂林医学院 A kind of small scall coal-fired boiler hot water apparatus
CN108413628A (en) * 2018-02-06 2018-08-17 杭州龙华环境集成系统有限公司 A kind of solar energy couples hot-water heating system and its control method with air source heat pump
CN109827221A (en) * 2018-11-28 2019-05-31 东北电力大学 A modular combined intelligent heating system based on multiple clean energy sources

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