WO2019237295A1 - Heat storage unit, and heat storage and heat supply system - Google Patents

Heat storage unit, and heat storage and heat supply system Download PDF

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Publication number
WO2019237295A1
WO2019237295A1 PCT/CN2018/091158 CN2018091158W WO2019237295A1 WO 2019237295 A1 WO2019237295 A1 WO 2019237295A1 CN 2018091158 W CN2018091158 W CN 2018091158W WO 2019237295 A1 WO2019237295 A1 WO 2019237295A1
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Prior art keywords
heat
water
temperature
solar
energy storage
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PCT/CN2018/091158
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French (fr)
Chinese (zh)
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苏树强
肖洪海
石红波
罗权权
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江苏蓄能谷实业有限公司
上海筑能环境科技有限公司
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Priority to PCT/CN2018/091158 priority Critical patent/WO2019237295A1/en
Publication of WO2019237295A1 publication Critical patent/WO2019237295A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • 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

Definitions

  • the invention relates to the technical field of heat supply and energy storage, in particular to a heat storage unit and a heat storage and heating system including the heat storage unit.
  • a heat storage and heating system generally includes a solar heat collection module, a hydraulic power distribution module, and a user-side heat dissipation module.
  • the solar heat collection module is used to heat the water therein, and the heated water is distributed to each heat dissipation module through the water conservancy distribution module.
  • the present invention aims to solve at least one of the technical problems existing in the prior art, and proposes a heat storage unit and a heat storage heating system.
  • a first aspect of the present invention provides a heat storage unit, including:
  • a gas-water heat exchanger which is in communication with the air outlet of the solar heat collector to exchange water in the gas-water heat exchanger;
  • a heat pump unit is in communication with the water outlet of the gas-water heat exchanger.
  • the heat pump unit is configured to collect heat from the solar energy when the actual temperature in the solar heat collector is lower than a preset first critical temperature.
  • the heat in the energy storage core in the device is extracted, so that the solar energy stored in the energy storage core is further used, so as to improve the utilization rate of solar energy.
  • the solar heat collector includes:
  • One end of the vacuum tube is in communication with the air inlet header, and the other end is in communication with the air inlet of the gas-water heat exchanger;
  • the energy storage core is installed in the vacuum tube, and the energy storage core is a phase change energy storage material for selectively storing and releasing solar energy.
  • the energy storage core includes a battery.
  • it further includes:
  • the Gudian energy storage module is in communication with the water outlet of the gas-water heat exchanger, and is used for heating the actual water temperature of the gas-water heat exchanger when the actual water temperature is lower than a preset second critical water temperature. To make the actual water temperature meet the preset water supply temperature.
  • the Gudian energy storage module includes:
  • a heating box is in communication with the water outlet of the gas-water heat exchanger, and a phase change energy storage material is provided in the heating box;
  • An electric heater is located in the heating box and is heated within a preset time period so that the phase change energy storage material stores energy.
  • it further includes a temperature sensor and a control unit, and the control unit is electrically connected to the temperature sensor and a control terminal of the heat pump unit;
  • the temperature sensor is configured to separately detect an actual temperature in the solar heat collector and an actual water temperature of the gas-water heat exchanger;
  • the control unit is configured to receive an actual temperature in the solar thermal collector, and compare the actual temperature with the first critical temperature. When it is determined that the actual temperature is lower than the first critical temperature, , Controlling the heat pump unit to start a heating mode;
  • the heat storage unit further includes a Gudian energy storage module:
  • the control unit is also electrically connected to a control terminal of the Gudian energy storage module
  • the control unit is further configured to compare the actual water temperature of the gas-water heat exchanger with a second critical temperature, and when it is determined that the actual water temperature is lower than the second critical temperature, control the valley electricity
  • the energy storage module starts the heating mode.
  • a heat storage and heating system which includes a heat storage unit, and the heat storage unit includes the heat storage unit described above.
  • it further includes a water distribution module and a user-side heat dissipation module;
  • the water inlet of the water distribution module is selectively connected with the water outlet of the gas-water heat exchanger and the water outlet of the heat pump unit;
  • the water inlet of the hydraulic distribution module is also selectively communicated with the water outlet of the valley electricity storage module;
  • the water outlet of the water conservancy distribution module is in communication with the water inlet of the heat dissipation module.
  • the heat dissipation module includes at least one of a radiator, a fan coil, and floor heating.
  • the return port of the heat dissipation module is in communication with the return port of the heat pump unit, and the return port of the heat pump unit is in communication with the return port of the gas-water heat exchanger.
  • the heat storage unit includes not only a solar heat collector but also a heat pump unit, which is in communication with the water outlet of the gas-water heat exchanger.
  • a heat pump unit When the actual temperature in the solar heat collector is lower than the preset first critical temperature, the heat in the energy storage core is extracted, so that the solar energy stored in the energy storage core is further utilized.
  • the heat pump unit is used in combination with air-type solar energy and phase-change energy storage cores.
  • the temperature in the solar collector is lower than a preset first critical temperature, the stored heat is extracted, thereby improving the utilization rate of solar energy and further improving Solar energy efficiency.
  • it can effectively ensure that the output water supply temperature meets the preset water supply temperature.
  • it When it is applied to the heat storage heating system, it can stabilize the water supply temperature of the user-side heat dissipation module and improve the user experience.
  • FIG. 1 is a schematic structural diagram of a heat storage heating system in a first embodiment of the present invention.
  • a first aspect of the present invention relates to a heat storage unit 100 including a solar heat collector 110, a gas-water heat exchanger 120, and a heat pump unit 130.
  • the solar heat collector 110 is used for collecting solar energy and heating the air located therein. That is, air is stored in the solar heat collector 110, so that the solar energy collected by the solar heat collector 110 can heat the part of the air.
  • the air-water heat exchanger 120 is in communication with the air outlet of the solar heat collector 110 to exchange heat in the water in the air-water heat exchanger 120, that is, the air is heated to the The water in the gas-water heat exchanger 120 is heated. As a result, the water in the gas-water heat exchanger 120 can be rapidly heated.
  • the heat pump unit 130 is in communication with the water outlet of the gas-water heat exchanger 120, and is configured to heat the solar heat collector 110 when the actual temperature in the solar heat collector 110 is lower than a preset first critical temperature, so that The actual temperature satisfies a preset temperature.
  • the heat pump unit 130 does not work all the time, but starts the heating function of the heat pump unit 130 only when the actual temperature in the solar heat collector 110 is lower than the preset first critical temperature, so that the system can be satisfied. Preset temperature.
  • the first critical temperature and the preset water supply temperature there is no specific limitation on the first critical temperature and the preset water supply temperature.
  • the first critical temperature may be 70 ° C
  • the preset water supply temperature may be 60 ° C or more. Any value.
  • those skilled in the art can determine the specific temperature values of the first critical temperature and the corresponding water supply temperature according to actual needs.
  • the heat storage unit 100 includes not only the solar heat collector 110 but also a heat pump unit 130, and when the actual temperature in the solar heat collector 110 is lower than a preset first critical temperature, the The heat in the energy storage core in the heater 110 is extracted, so that the solar energy stored in the energy storage core is further utilized.
  • the heat pump unit 130 is used in combination with air-type solar energy and a phase-change energy storage core.
  • the stored heat is extracted to improve the utilization rate of solar energy. Further improve solar energy utilization efficiency.
  • it can also effectively ensure that the output water supply temperature meets the preset water supply temperature.
  • it is applied to the thermal storage heating system 200 described below, it can stabilize the water supply temperature of the heat dissipation module at the user end and improve the user experience.
  • the solar heat collector 110 includes an air inlet header 111 and a vacuum tube 112.
  • the air inlet header 111 is used for containing air or communicating with the outside air source.
  • One end of the vacuum pipe 112 is in communication with the air inlet header 111, and the other end is in communication with the air inlet of the air-water heat exchanger 120.
  • An energy storage core is installed in the vacuum tube 112, and the energy storage core is a phase change energy storage material for selectively storing solar energy and selectively releasing solar energy.
  • the phase change energy storage material can store heat when there is excess solar energy, and release heat when solar energy is insufficient, so that the heat of solar energy can be used stably.
  • the energy storage core includes a battery.
  • the energy storage core can also be some other energy storage structure.
  • the heat storage unit 100 further includes a valley electricity storage module 140.
  • the Gudian energy storage module 140 is in communication with the water outlet of the gas-water heat exchanger 120, and is used for detecting when the actual water temperature in the gas-water heat exchanger 120 is lower than a preset second critical water temperature It is heated so that the actual water temperature meets the preset water supply temperature.
  • the second critical water temperature is not specifically limited, and for example, the second critical water temperature may be 60 ° C. Of course, those skilled in the art can determine the specific temperature value of the second critical water temperature according to actual needs.
  • the heat storage unit 100 in this embodiment further includes a valley electricity storage module 140, which can heat the actual water temperature when it is lower than the second critical water temperature. To meet the preset water supply temperature.
  • the Gudian energy storage module 140 can cooperate with the heat pump unit 130 to heat the water in the gas-water heat exchanger 120. In this way, the conversion efficiency of the air to the hot water supply can be further accelerated, and the energy utilization rate can be improved.
  • the time of the thermal storage heating system 200 described below the water temperature of the heat dissipation module at the user side can be further stabilized, and the user experience can be improved.
  • the valley power storage module 140 provided, the heat pump unit 130 can be effectively prevented from working for a long time, and the service life of the heat pump unit 130 can be improved.
  • the Gudian energy storage module 140 includes a heating box 141 and an electric heater 142.
  • the heating box 141 is in communication with the water outlet of the gas-water heat exchanger 120, and a phase-change energy storage material is provided in the heating box 141.
  • the electric heater 142 is located in the heating box 141 and is heated within a preset period of time, so that the phase change energy storage material stores energy.
  • the above-mentioned preset time period may be a time period in which electricity prices are relatively cheap, for example, at night (23:00 to 06:00), during which time, the electric heater 142 may be turned on for heating, so that the phase The variable energy storage material absorbs electric energy and stores it in the form of thermal energy.
  • the phase change energy storage material can release the stored thermal energy, so that the water can rapidly heat up to meet the preset Water temperature requirements.
  • the heat storage unit 100 further includes a temperature sensor (not shown in the figure) and a control unit (not shown in the figure).
  • the control unit is electrically connected to the temperature sensor, the control terminal of the heat pump unit 130, and the control terminal of the valley electricity storage module 140.
  • the control unit may be, for example, an electronic device having a control function such as a microcontroller.
  • the temperature sensor is configured to detect an actual temperature in the solar heat collector 110 and an actual water temperature of the gas-water heat exchanger 120, respectively.
  • the temperature sensor may be disposed in the solar heat collector 110.
  • a temperature sensor is provided at a temperature detection point A in FIG.
  • the temperature sensor may be provided at the temperature detection point B in the gas-water heat exchanger 120.
  • the temperature sensor and the like may also be provided in the heat pump unit 130 and the valley electricity storage module 140, respectively.
  • the control unit is configured to receive an actual temperature in the solar heat collector 110 and an actual water temperature in the gas-water heat exchanger 120, and compare the actual temperature with a first critical temperature and The actual water temperature is compared with a second critical temperature. When it is determined that the actual temperature is lower than the first critical temperature, the heat pump unit 130 is controlled to start a heating mode. When it is determined that the actual water temperature is lower than the second critical temperature, the valley electricity storage module 140 is controlled to start a heating mode.
  • a heat storage and heating system 200 which includes a heat storage unit 100.
  • the heat storage unit 100 includes the heat storage unit 100 described above.
  • the heat storage and heating system 200 in this embodiment includes the heat storage unit 100 described above.
  • the heat storage unit 100 includes not only the solar heat collector 110 but also a heat pump unit 130, which is inside the solar heat collector 110.
  • the actual temperature is lower than the first critical temperature, it is heated, so that the preset water supply temperature can be satisfied. In this way, the conversion efficiency of the air to the hot water supply can be accelerated, and the energy utilization rate can be improved.
  • the output water temperature can be effectively guaranteed to meet the preset water temperature, which can stabilize the water temperature at the user end and improve user experience.
  • the heat storage heating system 200 further includes a water conservancy distribution module (not shown in the figure) and a user-side heat dissipation module 210.
  • the water inlet of the water conservancy distribution module is selectively communicated with the water outlet of the gas-water heat exchanger 120, the water outlet of the heat pump unit 130, and the water outlet of the valley electricity storage module 140.
  • the so-called selective communication means that when the actual water temperature in the gas-water heat exchanger 120 can directly meet the preset water supply temperature under the heating action of the solar heat collector 110, at this time, the input of the water distribution module is The water outlet is in communication with the water outlet of the gas-water heat exchanger 120.
  • the water inlet of the water distribution module is in communication with the water outlet of the heat pump .
  • the water inlet of the water distribution module and the water The water outlet of the valley electricity storage module 140 is in communication.
  • the heat dissipation module 210 includes at least one of a radiator, a fan coil, and floor heating.
  • the return port of the heat dissipation module 210 is in communication with the return port of the heat pump unit 130, and the return port of the heat pump unit 130 is in communication with the return port of the gas-water heat exchanger 120. .
  • the return water of the heat dissipation module 210 can pass through the function of the compressor 131 in the heat pump unit 130, so that the condensing agent further draws the excess water temperature, and the low-temperature water that has lost heat passes through the air-water heat exchanger 120 and passes through the solar heat collector 110 again. Heating so that a cyclic workflow can be reached.

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Abstract

A heat storage unit, and a heat storage and heat supply system, comprising: a solar collector (110), configured to collect solar energy and heat air in the solar collector; an air-water heat exchanger (120), communicated with an air outlet of the solar collector (110) so as to carry out heat exchange on water in the air-water heat exchanger (120); and a heat pump unit (130), communicated with a water outlet of the air-water heat exchanger (120), and configured to extract, when an actual temperature in the solar collector (110) is lower than a preset first critical temperature, heat in an energy storage core body of the solar collector so as to enable solar energy stored in the core body to be further utilized. The heat pump unit (130) is used in combination with an air type solar energy and phase-change energy storage core body; when the temperature in the solar collector (110) is lower than the preset first critical temperature, the heat pump unit extracts the heat stored in the core body, so that the utilization rate of solar energy is improved, and the solar energy utilization efficiency is further improved.

Description

蓄热单元和蓄热供热***Thermal storage unit and thermal storage heating system 技术领域Technical field
本发明涉及供热及蓄能技术领域，具体涉及一种蓄热单元和一种包括该蓄热单元的蓄热供热***。The invention relates to the technical field of heat supply and energy storage, in particular to a heat storage unit and a heat storage and heating system including the heat storage unit.
背景技术Background technique
相关技术中，蓄热供热***一般包括太阳能集热模块、水力分配模块和用户末端散热模块构成。利用太阳能集热模块对其中的水进行加热，并将加热后的水经过水利分配模块分配至各散热模块。In the related art, a heat storage and heating system generally includes a solar heat collection module, a hydraulic power distribution module, and a user-side heat dissipation module. The solar heat collection module is used to heat the water therein, and the heated water is distributed to each heat dissipation module through the water conservancy distribution module.
但是，相关技术中的蓄热供热***，存在因太阳能不足所引起的太阳能利用率偏低，这样，会导致太阳能集热模块的供热转换效率低下。However, in the thermal storage heating system in the related art, there is a low utilization rate of solar energy caused by insufficient solar energy. In this way, the heating and conversion efficiency of the solar heat collection module is low.
发明内容Summary of the Invention
本发明旨在至少解决现有技术中存在的技术问题之一，提出了一种蓄热单元和一种蓄热供热***。The present invention aims to solve at least one of the technical problems existing in the prior art, and proposes a heat storage unit and a heat storage heating system.
为了实现上述目的，本发明的第一方面，提供了一种蓄热单元，包括：In order to achieve the above object, a first aspect of the present invention provides a heat storage unit, including:
太阳能集热器，用于收集太阳能并对位于其内的空气进行加热；Solar collector for collecting solar energy and heating the air inside it;
气水换热器，与所述太阳能集热器的出气口连通，以对所述气水换热器中的水进行换热；A gas-water heat exchanger, which is in communication with the air outlet of the solar heat collector to exchange water in the gas-water heat exchanger;
热泵机组，与所述气水换热器的出水口连通，所述热泵机组用于在所述太阳能集热器中的实际温度低于预设的第一临界温度时，对所述太阳能集热器内的蓄能芯体内的热量进行提取，以使得蓄存在所述蓄能芯体内的太阳能进一步利用，以提高太阳能的利用率。A heat pump unit is in communication with the water outlet of the gas-water heat exchanger. The heat pump unit is configured to collect heat from the solar energy when the actual temperature in the solar heat collector is lower than a preset first critical temperature. The heat in the energy storage core in the device is extracted, so that the solar energy stored in the energy storage core is further used, so as to improve the utilization rate of solar energy.
可选地，所述太阳能集热器包括：Optionally, the solar heat collector includes:
进风联箱，用于容纳空气；Inlet header for air
真空管，其一端与所述进风联箱连通，另一端与所述气水换热器的进气口连通；其中，One end of the vacuum tube is in communication with the air inlet header, and the other end is in communication with the air inlet of the gas-water heat exchanger;
所述蓄能芯体安装在所述真空管内，所述蓄能芯体内为相变蓄能材料，用于选择性地存储和释放太阳能。The energy storage core is installed in the vacuum tube, and the energy storage core is a phase change energy storage material for selectively storing and releasing solar energy.
可选地，所述蓄能芯体包括蓄电池。Optionally, the energy storage core includes a battery.
可选地，还包括：Optionally, it further includes:
谷电蓄能模块，与所述气水换热器的出水口连通，用于在所述气水换热器中的实际水温度低于预设的第二临界水温度时，对其进行加热，以使得该实际水温度满足所述预设的供水温度。The Gudian energy storage module is in communication with the water outlet of the gas-water heat exchanger, and is used for heating the actual water temperature of the gas-water heat exchanger when the actual water temperature is lower than a preset second critical water temperature. To make the actual water temperature meet the preset water supply temperature.
可选地，所述谷电蓄能模块包括：Optionally, the Gudian energy storage module includes:
加热箱，与所述气水换热器的出水口连通，所述加热箱内设置有相变蓄能材料；A heating box is in communication with the water outlet of the gas-water heat exchanger, and a phase change energy storage material is provided in the heating box;
电加热器，位于所述加热箱内，并在预设时间段内进行加热，以使得所述相变蓄能材料贮存能量。An electric heater is located in the heating box and is heated within a preset time period so that the phase change energy storage material stores energy.
可选地，还包括温度传感器和控制单元，所述控制单元与所述温度传感器、所述热泵机组的控制端均电连接；Optionally, it further includes a temperature sensor and a control unit, and the control unit is electrically connected to the temperature sensor and a control terminal of the heat pump unit;
所述温度传感器，用于分别检测所述太阳能集热器内的实际温度和所述气水换热器的实际水温度；The temperature sensor is configured to separately detect an actual temperature in the solar heat collector and an actual water temperature of the gas-water heat exchanger;
所述控制单元，用于接收所述太阳能集热器内的实际温度，并将所述实际温度与所述第一临界温度进行比较，当判定所述实际温度低于所述第一临界温度时，控制所述热泵机组启动制热模式；并且，The control unit is configured to receive an actual temperature in the solar thermal collector, and compare the actual temperature with the first critical temperature. When it is determined that the actual temperature is lower than the first critical temperature, , Controlling the heat pump unit to start a heating mode; and
当所述蓄热单元还包括谷电蓄能模块时：When the heat storage unit further includes a Gudian energy storage module:
所述控制单元还与所述谷电蓄能模块的控制端电连接；The control unit is also electrically connected to a control terminal of the Gudian energy storage module;
所述控制单元，还用于将所述气水换热器的实际水温度与第二临界温度进行比较，当判定所述实际水温度低于所述第二临界温度时，控制所述谷电蓄能模块启动加热模式。The control unit is further configured to compare the actual water temperature of the gas-water heat exchanger with a second critical temperature, and when it is determined that the actual water temperature is lower than the second critical temperature, control the valley electricity The energy storage module starts the heating mode.
本发明的第二方面，提供了一种蓄热供热***，包括蓄热单元，所述蓄热单元包括前文记载的所述的蓄热单元。According to a second aspect of the present invention, a heat storage and heating system is provided, which includes a heat storage unit, and the heat storage unit includes the heat storage unit described above.
可选地，还包括水利分配模块和用户端散热模块；Optionally, it further includes a water distribution module and a user-side heat dissipation module;
所述水利分配模块的进水口与所述气水换热器的出水口、所述热泵 机组的出水口选择性地连通；并且，The water inlet of the water distribution module is selectively connected with the water outlet of the gas-water heat exchanger and the water outlet of the heat pump unit; and,
当所述蓄热单元包括谷电蓄能模块时，所述水利分配模块的进水口还与所述谷电蓄能模块的出水口选择性地连通；When the heat storage unit includes a valley electricity storage module, the water inlet of the hydraulic distribution module is also selectively communicated with the water outlet of the valley electricity storage module;
所述水利分配模块的出水口与所述散热模块的进水口连通。The water outlet of the water conservancy distribution module is in communication with the water inlet of the heat dissipation module.
可选地，所述散热模块包括暖气片、风机盘管和地暖中的至少一者。Optionally, the heat dissipation module includes at least one of a radiator, a fan coil, and floor heating.
可选地，所述散热模块的回水口与所述热泵机组的回水口连通，所述热泵机组的回水口与所述气水换热器的回水口连通。Optionally, the return port of the heat dissipation module is in communication with the return port of the heat pump unit, and the return port of the heat pump unit is in communication with the return port of the gas-water heat exchanger.
本发明的蓄热单元和蓄热供热***，蓄热单元不仅仅包括太阳能集热器，还包括热泵机组，与所述气水换热器的出水口连通，所述热泵机组用于在所述太阳能集热器中的实际温度低于预设的第一临界温度时，对其蓄能芯体内的热量进行提取，以使得蓄存在蓄能芯体内的太阳能进一步利用。热泵机组结合空气式太阳能及相变蓄能芯体使用，当太阳能集热器内温度低于预设的第一临界温度时，对其蓄存热量进行提取，从而提高太阳能的利用率，进一步提高太阳能能量利用效率。同时还可以有效保证所输出的供水温度满足预设的供水温度，在将其应用到蓄热供热***时，可以稳定用户端散热模块的供水温度，提高用户体验。In the heat storage unit and the heat storage heating system of the present invention, the heat storage unit includes not only a solar heat collector but also a heat pump unit, which is in communication with the water outlet of the gas-water heat exchanger. When the actual temperature in the solar heat collector is lower than the preset first critical temperature, the heat in the energy storage core is extracted, so that the solar energy stored in the energy storage core is further utilized. The heat pump unit is used in combination with air-type solar energy and phase-change energy storage cores. When the temperature in the solar collector is lower than a preset first critical temperature, the stored heat is extracted, thereby improving the utilization rate of solar energy and further improving Solar energy efficiency. At the same time, it can effectively ensure that the output water supply temperature meets the preset water supply temperature. When it is applied to the heat storage heating system, it can stabilize the water supply temperature of the user-side heat dissipation module and improve the user experience.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
附图是用来提供对本发明的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本发明，但并不构成对本发明的限制。在附图中：The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description. Together with the following specific embodiments, the drawings are used to explain the present invention, but not to limit the present invention. In the drawings:
图1为本发明第一实施例中蓄热供热***的结构示意图。FIG. 1 is a schematic structural diagram of a heat storage heating system in a first embodiment of the present invention.
附图标记说明Reference Signs
100：蓄热单元；100: heat storage unit;
110：太阳能集热器；110: solar collector;
111：进风联箱；111: air inlet header;
112：真空管；112: vacuum tube;
120：气水换热器；120: gas-water heat exchanger;
130：热泵机组；130: heat pump unit;
131：压缩机；131: compressor;
140：谷电蓄能模块；140: Gudian energy storage module;
141：加热箱；141: heating box;
142：电加热器；142: electric heater;
200：蓄热供热***；200: Regenerative heating system;
210：用户端散热模块。210: User-side cooling module.
具体实施方式detailed description
以下结合附图对本发明的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
参考图1，本发明的第一方面，涉及一种蓄热单元100，该蓄热单元100包括太阳能集热器110、气水换热器120和热泵机组130。其中，所述太阳能集热器110用于收集太阳能并对位于其内的空气进行加热。也就是说，太阳能集热器110中存储有空气，这样，太阳能集热器110所收集的太阳能可以对该部分空气进行加热。Referring to FIG. 1, a first aspect of the present invention relates to a heat storage unit 100 including a solar heat collector 110, a gas-water heat exchanger 120, and a heat pump unit 130. The solar heat collector 110 is used for collecting solar energy and heating the air located therein. That is, air is stored in the solar heat collector 110, so that the solar energy collected by the solar heat collector 110 can heat the part of the air.
上述气水换热器120与所述太阳能集热器110的出气口连通，以对所述气水换热器120中的水进行换热，也就是说，利用加热后的所述空气对所述气水换热器120中的水进行加热。从而可以使得气水换热器120中的水快速升温。The air-water heat exchanger 120 is in communication with the air outlet of the solar heat collector 110 to exchange heat in the water in the air-water heat exchanger 120, that is, the air is heated to the The water in the gas-water heat exchanger 120 is heated. As a result, the water in the gas-water heat exchanger 120 can be rapidly heated.
上述热泵机组130与所述气水换热器120的出水口连通，用于在所述太阳能集热器110内的实际温度低于预设的第一临界温度时，对其进行加热，以使得该实际温度满足预设的温度。也就是说，热泵机组130并不是一直工作，而是当太阳能集热器110内的实际温度低于预设的第一临界温度时，才开始启动热泵机组130的制热功能，从而可以满足***预设的温度。The heat pump unit 130 is in communication with the water outlet of the gas-water heat exchanger 120, and is configured to heat the solar heat collector 110 when the actual temperature in the solar heat collector 110 is lower than a preset first critical temperature, so that The actual temperature satisfies a preset temperature. In other words, the heat pump unit 130 does not work all the time, but starts the heating function of the heat pump unit 130 only when the actual temperature in the solar heat collector 110 is lower than the preset first critical temperature, so that the system can be satisfied. Preset temperature.
需要说明的是，对于上述的第一临界温度和预设的供水温度均没有作出具体限定，例如，该第一临界温度可以为70℃，预设的供水温度可以是60℃或者大于60℃的任意一个值。当然，本领域技术人员可以根据实际需要，确定第一临界温度和相应地供水温度的具体温度取值。It should be noted that there is no specific limitation on the first critical temperature and the preset water supply temperature. For example, the first critical temperature may be 70 ° C, and the preset water supply temperature may be 60 ° C or more. Any value. Of course, those skilled in the art can determine the specific temperature values of the first critical temperature and the corresponding water supply temperature according to actual needs.
本实施例中的蓄热单元100，不仅仅包括太阳能集热器110，还包括热泵机组130，其在太阳能集热器110内的实际温度低于预设的第一临界温度时，对太阳能集热器110中的蓄能芯体内的热量进行提取，以使得蓄存在蓄能芯体内的太阳能进一步利用。热泵机组130结合空气式太阳能及相变蓄能芯体使用，当太阳能集热器110内温度低于预设的第一临界温度时，对其蓄存热量进行提取，从而提高太阳能的利用率，进一步提高太阳能能量利用效率。同时还可以有效保证所输出的供水温度满足预设的供水温度，在将其应用到下述的蓄热供热***200时，可以稳定用户端散热模块的供水温度，提高用户体验。In this embodiment, the heat storage unit 100 includes not only the solar heat collector 110 but also a heat pump unit 130, and when the actual temperature in the solar heat collector 110 is lower than a preset first critical temperature, the The heat in the energy storage core in the heater 110 is extracted, so that the solar energy stored in the energy storage core is further utilized. The heat pump unit 130 is used in combination with air-type solar energy and a phase-change energy storage core. When the temperature in the solar heat collector 110 is lower than a preset first critical temperature, the stored heat is extracted to improve the utilization rate of solar energy. Further improve solar energy utilization efficiency. At the same time, it can also effectively ensure that the output water supply temperature meets the preset water supply temperature. When it is applied to the thermal storage heating system 200 described below, it can stabilize the water supply temperature of the heat dissipation module at the user end and improve the user experience.
可选地，如图1所示，所述太阳能集热器110包括进风联箱111、真空管112。其中，进风联箱111用于容纳空气或者其与外界的气源连通。真空管112的一端与所述进风联箱111连通，另一端与所述气水换热器120的进气口连通。蓄能芯体安装在所述真空管112内，所述蓄能芯体内为相变蓄能材料，用于选择性地存储太阳能并选择性地释放太阳能。例如，该相变蓄能材料可以在太阳能过剩时储存热量，在太阳能不足时，释放热量，从而可以稳定地利用太阳能的热量。Optionally, as shown in FIG. 1, the solar heat collector 110 includes an air inlet header 111 and a vacuum tube 112. Wherein, the air inlet header 111 is used for containing air or communicating with the outside air source. One end of the vacuum pipe 112 is in communication with the air inlet header 111, and the other end is in communication with the air inlet of the air-water heat exchanger 120. An energy storage core is installed in the vacuum tube 112, and the energy storage core is a phase change energy storage material for selectively storing solar energy and selectively releasing solar energy. For example, the phase change energy storage material can store heat when there is excess solar energy, and release heat when solar energy is insufficient, so that the heat of solar energy can be used stably.
可选地，所述蓄能芯体包括蓄电池。当然，蓄能芯体还可以是其他的一些蓄能结构。Optionally, the energy storage core includes a battery. Of course, the energy storage core can also be some other energy storage structure.
可选地，蓄热单元100还包括谷电蓄能模块140。该谷电蓄能模块140与所述气水换热器120的出水口连通，用于在所述气水换热器120中的实际水温度低于预设的第二临界水温度时，对其进行加热，以使得该实际水温度满足所述预设的供水温度。Optionally, the heat storage unit 100 further includes a valley electricity storage module 140. The Gudian energy storage module 140 is in communication with the water outlet of the gas-water heat exchanger 120, and is used for detecting when the actual water temperature in the gas-water heat exchanger 120 is lower than a preset second critical water temperature It is heated so that the actual water temperature meets the preset water supply temperature.
需要说明的是，对于上述的第二临界水温度没有作出具体限定，例如，该第二临界水温度可以为60℃。当然，本领域技术人员可以根据实际需要，确定第二临界水温度的具体温度取值。It should be noted that the second critical water temperature is not specifically limited, and for example, the second critical water temperature may be 60 ° C. Of course, those skilled in the art can determine the specific temperature value of the second critical water temperature according to actual needs.
本实施例中的蓄热单元100，除了具有太阳能集热器110和热泵机组130以外，还包括谷电蓄能模块140，其可以实际水温度低于第二临界水温度时，对其进行加热，以满足所述预设的供水温度。该谷电蓄能模块140可以配合热泵机组130一起对气水换热器120的水进行加热，这样，可以进一步加快空气达到供热水的转化效率，提高能量利用率，同 时，在将其应用到下述的蓄热供热***200时，还可以进一步稳定用户端散热模块的供水温度，提高用户体验。此外，利用所设置的谷电蓄能模块140，可以有效避免热泵机组130长时间工作，从而可以提高热泵机组130的使用寿命。In addition to the solar heat collector 110 and the heat pump unit 130, the heat storage unit 100 in this embodiment further includes a valley electricity storage module 140, which can heat the actual water temperature when it is lower than the second critical water temperature. To meet the preset water supply temperature. The Gudian energy storage module 140 can cooperate with the heat pump unit 130 to heat the water in the gas-water heat exchanger 120. In this way, the conversion efficiency of the air to the hot water supply can be further accelerated, and the energy utilization rate can be improved. By the time of the thermal storage heating system 200 described below, the water temperature of the heat dissipation module at the user side can be further stabilized, and the user experience can be improved. In addition, by using the valley power storage module 140 provided, the heat pump unit 130 can be effectively prevented from working for a long time, and the service life of the heat pump unit 130 can be improved.
可选地，如图1所示，所述谷电蓄能模块140包括加热箱141和电加热器142。其中，加热箱141与所述气水换热器120的出水口连通，所述加热箱141内设置有相变蓄能材料。电加热器142位于所述加热箱141内，并在预设时间段内进行加热，以使得所述相变蓄能材料贮存能量。Optionally, as shown in FIG. 1, the Gudian energy storage module 140 includes a heating box 141 and an electric heater 142. The heating box 141 is in communication with the water outlet of the gas-water heat exchanger 120, and a phase-change energy storage material is provided in the heating box 141. The electric heater 142 is located in the heating box 141 and is heated within a preset period of time, so that the phase change energy storage material stores energy.
具体地，上述的预设时间段可以是电价相对便宜的时间段，例如，夜间(23：00～06：00)，在该时间段内，可以开启电加热器142进行加热，从而可以使得相变蓄能材料吸收电能并以热能的形式贮存起来，当实际水温度低于第二临界水温度时，相变蓄能材料可以释放所存储的热能，从而可以使得水快速升温，满足预设的供水温度要求。Specifically, the above-mentioned preset time period may be a time period in which electricity prices are relatively cheap, for example, at night (23:00 to 06:00), during which time, the electric heater 142 may be turned on for heating, so that the phase The variable energy storage material absorbs electric energy and stores it in the form of thermal energy. When the actual water temperature is lower than the second critical water temperature, the phase change energy storage material can release the stored thermal energy, so that the water can rapidly heat up to meet the preset Water temperature requirements.
可选地，上述蓄热单元100还包括温度传感器(图中并未示出)和控制单元(图中并未示出)。所述控制单元与所述温度传感器、所述热泵机组130的控制端以及所述谷电蓄能模块140的控制端均电连接。该控制单元，例如，可以是单片机等具有控制功能的电子器件。Optionally, the heat storage unit 100 further includes a temperature sensor (not shown in the figure) and a control unit (not shown in the figure). The control unit is electrically connected to the temperature sensor, the control terminal of the heat pump unit 130, and the control terminal of the valley electricity storage module 140. The control unit may be, for example, an electronic device having a control function such as a microcontroller.
所述温度传感器，用于分别检测所述太阳能集热器110内的实际温度和所述气水换热器120的实际水温度。The temperature sensor is configured to detect an actual temperature in the solar heat collector 110 and an actual water temperature of the gas-water heat exchanger 120, respectively.
具体地，温度传感器可以设置在太阳能集热器110内，例如，在图1中温度检测点A处设置有一个温度传感器。此外，温度传感器可以设置在气水换热器120内的温度检测点B处，当然，也可以分别在热泵机组130和谷电蓄能模块140中设置温度传感器等等。Specifically, the temperature sensor may be disposed in the solar heat collector 110. For example, a temperature sensor is provided at a temperature detection point A in FIG. In addition, the temperature sensor may be provided at the temperature detection point B in the gas-water heat exchanger 120. Of course, the temperature sensor and the like may also be provided in the heat pump unit 130 and the valley electricity storage module 140, respectively.
所述控制单元用于接收所述太阳能集热器110内的实际温度以及所述气水换热器120中的实际水温度，并分别将所述实际温度与第一临界温度进行比较以及将所述实际水温度与第二临界温度进行比较，当判定所述实际温度低于所述第一临界温度时，控制所述热泵机组130启动制热模式。当判定所述实际水温度低于所述第二临界温度时，控制所述谷电蓄能模块140启动加热模式。The control unit is configured to receive an actual temperature in the solar heat collector 110 and an actual water temperature in the gas-water heat exchanger 120, and compare the actual temperature with a first critical temperature and The actual water temperature is compared with a second critical temperature. When it is determined that the actual temperature is lower than the first critical temperature, the heat pump unit 130 is controlled to start a heating mode. When it is determined that the actual water temperature is lower than the second critical temperature, the valley electricity storage module 140 is controlled to start a heating mode.
本发明的第二方面，如图1所示，提供了一种蓄热供热***200， 包括蓄热单元100，所述蓄热单元100包括前文记载的所述的蓄热单元100。According to a second aspect of the present invention, as shown in FIG. 1, a heat storage and heating system 200 is provided, which includes a heat storage unit 100. The heat storage unit 100 includes the heat storage unit 100 described above.
本实施例中的蓄热供热***200，其包括前文记载的蓄热单元100，该蓄热单元100不仅仅包括太阳能集热器110，还包括热泵机组130，其在太阳能集热器110内中的实际温度低于第一临界温度时，对其进行加热，从而可以满足预设的供水温度。这样，可以加快空气达到供热水的转化效率，提高能量利用率，同时还可以有效保证所输出的供水温度满足预设的供水温度，可以稳定用户端供水温度，提高用户体验。The heat storage and heating system 200 in this embodiment includes the heat storage unit 100 described above. The heat storage unit 100 includes not only the solar heat collector 110 but also a heat pump unit 130, which is inside the solar heat collector 110. When the actual temperature is lower than the first critical temperature, it is heated, so that the preset water supply temperature can be satisfied. In this way, the conversion efficiency of the air to the hot water supply can be accelerated, and the energy utilization rate can be improved. At the same time, the output water temperature can be effectively guaranteed to meet the preset water temperature, which can stabilize the water temperature at the user end and improve user experience.
可选地，如图1所示，蓄热供热***200还包括水利分配模块(图中并未示出)和用户端散热模块210。其中，所述水利分配模块的进水口与所述气水换热器120的出水口、所述热泵机组130的出水口以及所述谷电蓄能模块140的出水口选择性地连通。所谓的选择性连通是指：当气水换热器120中的实际水温度在太阳能集热器110的加热作用下可以直接满足预设的供水温度时，此时，所述水利分配模块的进水口与所述气水换热器120的出水口连通。当气水换热器120中的实际水温度需要经过热泵机组130进行加热后才能够满足预设的供水温度时，此时，所述水利分配模块的进水口与所述热泵机组的出水口连通。相应地，当气水换热器120中的实际水温度需要经过谷电蓄能模块140进行加热后才能够满足预设的供水温度时，此时，所述水利分配模块的进水口与所述谷电蓄能模块140的出水口连通。Optionally, as shown in FIG. 1, the heat storage heating system 200 further includes a water conservancy distribution module (not shown in the figure) and a user-side heat dissipation module 210. The water inlet of the water conservancy distribution module is selectively communicated with the water outlet of the gas-water heat exchanger 120, the water outlet of the heat pump unit 130, and the water outlet of the valley electricity storage module 140. The so-called selective communication means that when the actual water temperature in the gas-water heat exchanger 120 can directly meet the preset water supply temperature under the heating action of the solar heat collector 110, at this time, the input of the water distribution module is The water outlet is in communication with the water outlet of the gas-water heat exchanger 120. When the actual water temperature in the gas-water heat exchanger 120 needs to be heated by the heat pump unit 130 before it can meet the preset water supply temperature, at this time, the water inlet of the water distribution module is in communication with the water outlet of the heat pump . Correspondingly, when the actual water temperature in the gas-water heat exchanger 120 needs to be heated by the Gudian energy storage module 140 before it can meet the preset water supply temperature, at this time, the water inlet of the water distribution module and the water The water outlet of the valley electricity storage module 140 is in communication.
可选地，所述散热模块210包括暖气片、风机盘管和地暖中的至少一者。Optionally, the heat dissipation module 210 includes at least one of a radiator, a fan coil, and floor heating.
可选地，如图1所示，所述散热模块210的回水口与所述热泵机组130的回水口连通，所述热泵机组130的回水口与所述气水换热器120的回水口连通。这样，散热模块210的回水可以经过热泵机组130内的压缩机131的作用，使得冷凝剂进一步汲取多余的水温，散失热量的低温水通过气水换热器120，经过太阳能集热器110再次加热，从而可以达到一个循环工作流程。Optionally, as shown in FIG. 1, the return port of the heat dissipation module 210 is in communication with the return port of the heat pump unit 130, and the return port of the heat pump unit 130 is in communication with the return port of the gas-water heat exchanger 120. . In this way, the return water of the heat dissipation module 210 can pass through the function of the compressor 131 in the heat pump unit 130, so that the condensing agent further draws the excess water temperature, and the low-temperature water that has lost heat passes through the air-water heat exchanger 120 and passes through the solar heat collector 110 again. Heating so that a cyclic workflow can be reached.
可以理解的是，以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式，然而本发明并不局限于此。对于本领域内的普通技 术人员而言，在不脱离本发明的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本发明的保护范围。It can be understood that the above embodiments are merely exemplary embodiments adopted for explaining the principle of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various variations and improvements can be made without departing from the spirit and essence of the present invention, and these variations and improvements are also considered to be within the protection scope of the present invention.

Claims (10)

  1. 一种蓄热单元，其特征在于，包括：A heat storage unit, comprising:
    太阳能集热器，用于收集太阳能并对位于其内的空气进行加热；Solar collector for collecting solar energy and heating the air inside it;
    气水换热器，与所述太阳能集热器的出气口连通，以对所述气水换热器中的水进行换热；A gas-water heat exchanger, which is in communication with the air outlet of the solar heat collector to exchange water in the gas-water heat exchanger;
    热泵机组，与所述气水换热器的出水口连通，所述热泵机组用于在所述太阳能集热器中的实际温度低于预设的第一临界温度时，对所述太阳能集热器内的蓄能芯体内的热量进行提取，以使得蓄存在所述蓄能芯体内的太阳能进一步利用，以提高太阳能的利用率。A heat pump unit is in communication with the water outlet of the gas-water heat exchanger. The heat pump unit is configured to collect heat from the solar energy when the actual temperature in the solar heat collector is lower than a preset first critical temperature. The heat in the energy storage core in the device is extracted, so that the solar energy stored in the energy storage core is further used, so as to improve the utilization rate of solar energy.
  2. 根据权利要求1所述的蓄热单元，其特征在于，所述太阳能集热器包括：The thermal storage unit according to claim 1, wherein the solar heat collector comprises:
    进风联箱，用于容纳空气；Inlet header for air
    真空管，其一端与所述进风联箱连通，另一端与所述气水换热器的进气口连通；其中，One end of the vacuum tube is in communication with the air inlet header, and the other end is in communication with the air inlet of the gas-water heat exchanger;
    所述蓄能芯体安装在所述真空管内，所述蓄能芯体内为相变蓄能材料，用于选择性地存储和释放太阳能。The energy storage core is installed in the vacuum tube, and the energy storage core is a phase change energy storage material for selectively storing and releasing solar energy.
  3. 根据权利要求2所述的蓄热单元，其特征在于，所述蓄能芯体包括蓄电池。The heat storage unit according to claim 2, wherein the energy storage core comprises a battery.
  4. 根据权利要求1至3中任意一项所述的蓄热单元，其特征在于，还包括：The heat storage unit according to any one of claims 1 to 3, further comprising:
    谷电蓄能模块，与所述气水换热器的出水口连通，用于在所述气水换热器中的实际水温度低于预设的第二临界水温度时，对其进行加热，以使得该实际水温度满足所述预设的供水温度。The Gudian energy storage module is in communication with the water outlet of the gas-water heat exchanger, and is used for heating the actual water temperature of the gas-water heat exchanger when the actual water temperature is lower than a preset second critical water temperature. To make the actual water temperature meet the preset water supply temperature.
  5. 根据权利要求4所述的蓄热单元，其特征在于，所述谷电蓄能模块包括：The thermal storage unit according to claim 4, wherein the Gudian energy storage module comprises:
    加热箱，与所述气水换热器的出水口连通，所述加热箱内设置有相变蓄能材料；A heating box is in communication with the water outlet of the gas-water heat exchanger, and a phase change energy storage material is provided in the heating box;
    电加热器，位于所述加热箱内，并在预设时间段内进行加热，以使得所述相变蓄能材料贮存能量。An electric heater is located in the heating box and is heated within a preset time period so that the phase change energy storage material stores energy.
  6. 根据权利要求1至3中任意一项所述的蓄热单元，其特征在于，还包括温度传感器和控制单元，所述控制单元与所述温度传感器、所述热泵机组的控制端均电连接；The heat storage unit according to any one of claims 1 to 3, further comprising a temperature sensor and a control unit, wherein the control unit is electrically connected to the temperature sensor and a control terminal of the heat pump unit;
    所述温度传感器，用于分别检测所述太阳能集热器内的实际温度和所述气水换热器的实际水温度；The temperature sensor is configured to separately detect an actual temperature in the solar heat collector and an actual water temperature of the gas-water heat exchanger;
    所述控制单元，用于接收所述太阳能集热器内的实际温度，并将所述实际温度与所述第一临界温度进行比较，当判定所述实际温度低于所述第一临界温度时，控制所述热泵机组启动制热模式；并且，The control unit is configured to receive an actual temperature in the solar thermal collector, and compare the actual temperature with the first critical temperature. When it is determined that the actual temperature is lower than the first critical temperature, , Controlling the heat pump unit to start a heating mode; and
    当所述蓄热单元还包括谷电蓄能模块时：When the heat storage unit further includes a Gudian energy storage module:
    所述控制单元还与所述谷电蓄能模块的控制端电连接；The control unit is also electrically connected to a control terminal of the Gudian energy storage module;
    所述控制单元，还用于将所述气水换热器的实际水温度与第二临界温度进行比较，当判定所述实际水温度低于所述第二临界温度时，控制所述谷电蓄能模块启动加热模式。The control unit is further configured to compare the actual water temperature of the gas-water heat exchanger with a second critical temperature, and when it is determined that the actual water temperature is lower than the second critical temperature, control the valley electricity The energy storage module starts the heating mode.
  7. 一种蓄热供热***，包括蓄热单元，其特征在于，所述蓄热单元包括权利要求1至6中任意一项所述的蓄热单元。A heat storage and heating system includes a heat storage unit, wherein the heat storage unit comprises the heat storage unit according to any one of claims 1 to 6.
  8. 根据权利要求7所述的蓄热供热***，其特征在于，还包括水利分配模块和用户端散热模块；The heat storage heating system according to claim 7, further comprising a water distribution module and a user-side heat dissipation module;
    所述水利分配模块的进水口与所述气水换热器的出水口、所述热泵机组的出水口选择性地连通；并且，The water inlet of the water conservancy distribution module is selectively communicated with the water outlet of the gas-water heat exchanger and the water outlet of the heat pump unit; and,
    当所述蓄热单元包括谷电蓄能模块时，所述水利分配模块的进水口还与所述谷电蓄能模块的出水口选择性地连通；When the heat storage unit includes a valley electricity storage module, the water inlet of the hydraulic distribution module is also selectively communicated with the water outlet of the valley electricity storage module;
    所述水利分配模块的出水口与所述散热模块的进水口连通。The water outlet of the water conservancy distribution module is in communication with the water inlet of the heat dissipation module.
  9. 根据权利要求8所述的蓄热供热***，其特征在于，所述散热模块包括暖气片、风机盘管和地暖中的至少一者。The thermal storage heating system according to claim 8, wherein the heat dissipation module comprises at least one of a radiator, a fan coil, and floor heating.
  10. 根据权利要求8所述的蓄热供热***，其特征在于，所述散热模块的回水口与所述热泵机组的回水口连通，所述热泵机组的回水口与所述气水换热器的回水口连通。The heat storage heating system according to claim 8, characterized in that the return port of the heat dissipation module is in communication with the return port of the heat pump unit, and the return port of the heat pump unit is connected to the The return water port is connected.
PCT/CN2018/091158 2018-06-13 2018-06-13 Heat storage unit, and heat storage and heat supply system WO2019237295A1 (en)

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