WO2020063224A1 - Système de chauffage et de réfrigération à chaudière électrique à stockage de chaleur solide couplé à un stockage d'énergie dynamique - Google Patents

Système de chauffage et de réfrigération à chaudière électrique à stockage de chaleur solide couplé à un stockage d'énergie dynamique Download PDF

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Publication number
WO2020063224A1
WO2020063224A1 PCT/CN2019/102250 CN2019102250W WO2020063224A1 WO 2020063224 A1 WO2020063224 A1 WO 2020063224A1 CN 2019102250 W CN2019102250 W CN 2019102250W WO 2020063224 A1 WO2020063224 A1 WO 2020063224A1
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WIPO (PCT)
Prior art keywords
water
heat
heat exchanger
energy storage
storage device
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Application number
PCT/CN2019/102250
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English (en)
Chinese (zh)
Inventor
马美秀
徐桂芝
杨岑玉
邓占锋
陈梦东
王乐
梁立晓
宋洁
Original Assignee
全球能源互联网研究院有限公司
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Publication of WO2020063224A1 publication Critical patent/WO2020063224A1/fr

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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
    • F24D11/006—Central heating systems using heat accumulated in storage masses air heating system
    • F24D11/007—Central heating systems using heat accumulated in storage masses air heating system combined with solar energy
    • 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
    • F24D11/006—Central heating systems using heat accumulated in storage masses air heating system
    • F24D11/008—Central heating systems using heat accumulated in storage masses air heating system with conventional supplementary heat source
    • 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
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B27/00—Machines, plants or systems, using particular sources of energy
    • F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine

Definitions

  • the present application relates to the field of clean energy conversion from coal to electricity, for example, to a solid heat storage electric boiler heating and cooling system coupled with dynamic energy storage.
  • solar energy storage devices can only collect and store solar energy during the day or part of the sun, and hydrogen energy is a secondary energy source. It also faces many problems including safety, generation and transportation costs, and cannot be continuously supplied. In addition, the heat generated by the compressed air energy storage device during the compression process is insufficient to make the turbine continue to run stably for a long time, so these dynamic energy storage devices still have problems such as instability and intermittentness.
  • the present application provides a solid heat storage electric boiler heating and cooling system coupled with dynamic energy storage to solve the problems of instability and intermittentness of the dynamic energy storage device in the related art.
  • An embodiment of the present application provides a solid heat storage electric boiler heating and cooling system coupled with dynamic energy storage, including: a dynamic energy storage device, a solid heat storage electric boiler, a fan, a gas-water heat exchanger, a water-water heat exchanger, and a refrigeration unit.
  • the dynamic energy storage device is connected to the refrigeration unit and is configured to provide a first heat source for the refrigeration unit, and the refrigeration unit is configured to use the first heat source for cooling; or the dynamic energy storage device is provided.
  • the fan is connected to the solid heat storage electric boiler, the solid heat storage electric boiler is connected to the gas-water heat exchanger, and the fan is configured to transfer air to the air after being pressurized.
  • the solid heat storage electric boiler is heated, the solid heat storage electric boiler is configured to transfer the heated air to the gas-water heat exchanger; the gas-water heat exchanger is configured to transfer the heat of the heated air to The once-circulated water in the air-water heat exchanger, after the temperature of the once-circulated water is cooled, enters the fan, and the fan is further configured to pressurize the cooled air; after heating The primary circulating water enters the refrigeration unit to provide a second heat source for the refrigeration unit, and the refrigeration unit is configured to use the second heat source for cooling; or, the heated primary circulating water enters the water
  • the water heat exchanger provides a second heat source for the water-water heat exchanger, and the water-water heat exchanger is configured to use the second heat source to heat the circulating backwater in the water-water heat exchanger.
  • FIG. 1 is a schematic structural diagram of a solid heat storage electric boiler heating and cooling system coupled with dynamic energy storage in an embodiment of the present application;
  • FIG. 2 is a schematic structural diagram of a heating and cooling system for a solid heat storage electric boiler coupled with dynamic energy storage according to an embodiment of the present application.
  • 1-solid heat storage electric boiler 2-dynamic energy storage device; 3-fan; 4-air-water heat exchanger; 5-third calorimeter; 6-first thermometer; 7-first valve; 8-second valve ; 9- second thermometer; 10- third valve; 11- cold user; 12- fourth valve; 13- refrigeration unit; 14- fifth valve; 15- sixth valve; 16- second calorimeter; 17- Seventh valve; 18- heat user; 19- water-water heat exchanger; 20- eighth valve; 21- ninth valve; 22- first calorimeter; 23- increase pump; 24- tenth valve.
  • the terms “center”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inside”, “outside” and the like indicate the orientation or position The relationship is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore It should not be construed as a limitation on this application.
  • the terms “first,” “second,” and “third” are used for descriptive purposes only, and should not be construed to indicate or imply relative importance.
  • the terms “installation”, “connected”, and “connected” should be understood in a broad sense unless otherwise specified and defined, for example, they may be fixed connections, detachable connections, or integrally Connection; it can be mechanical or electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can also be the internal connection of two components; it can be a wireless connection or a wired connection.
  • installation should be understood in a broad sense unless otherwise specified and defined, for example, they may be fixed connections, detachable connections, or integrally Connection; it can be mechanical or electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can also be the internal connection of two components; it can be a wireless connection or a wired connection.
  • the heat supply and cooling system includes: a dynamic energy storage device 2, a solid heat storage electric boiler 1, a fan 3, and a gas generator.
  • the dynamic energy storage device 2 provides the first heat source for heating;
  • the fan 3 is connected to the solid heat storage electric boiler 1, the solid heat storage electric boiler 1 is connected to the gas-water heat exchanger 4, and the fan 3 pressurizes the air and transmits it to the solid heat storage electric boiler 1 for heating.
  • the solid heat storage electric boiler 1 transfers the heated air to the gas-water heat exchanger 4; the gas-water heat exchanger 4 transfers the heat of the heated air to the primary circulating water in the gas-water heat exchanger 4,
  • the air enters the fan 3 and is pressurized again; the heated primary circulating water enters the refrigeration unit 13 to provide a second heat source for the refrigeration unit 13 and the refrigeration unit 13 uses the second heat source for cooling; or the heated primary circulating water enters the water water Heater 19, the water of the heat exchanger to provide a second heat source circulating backwater, the water of the second heat exchanger 19 using the heat source for heating water of heat exchanger 19, 19.
  • the dynamic energy storage device 2 includes at least one of a compressed air energy storage device, a hydrogen energy storage device, and a solar energy storage device.
  • the compressed air energy storage device stores excess air through compressed air during a low load period of the power grid. In the case of the peak load of the power grid, the compressed air is released to generate heat through the expander to generate power as the first heat source; the hydrogen energy storage device electrolyzes water into hydrogen and stores it, and converts the stored hydrogen into electricity. The work generates heat energy as the first heat source; the solar energy storage device collects and stores solar energy, and converts the stored solar energy into heat energy as the first heat source.
  • the dynamic energy storage device 2 in the embodiment of the present application is not limited to one or more of a compressed air energy storage device, a hydrogen energy storage device, and a solar energy storage device. In practical applications, the dynamic energy storage device may also be other Device that can provide a heat source.
  • the solid heat storage electric boiler heating and cooling system coupled with dynamic energy storage provided in the embodiment of the present application, the dynamic energy storage device 2 and the solid heat storage electric boiler 1 are arranged in the same heating and cooling system, which not only realizes heating in winter, but also ensures Cooling in summer, and using the solid heat storage electric boiler 1 to solve the problems of fluctuation and instability of the dynamic energy storage device 2, maintaining the stability of heating or cooling, and improving the efficiency of the use of renewable energy and electrical energy.
  • the solid heat storage electric boiler 1 uses a phase change material to heat the air.
  • the dynamic energy storage device 2 in the case of heating, is used to provide a heat source.
  • the fourth valve 12 and the seventh valve 17 are opened.
  • Other valves are closed, the dynamic energy storage device 2 uses the first heat source to provide heat for the heat user 18; when the energy of the dynamic energy storage device 2 is insufficient, the solid heat storage electric boiler 1 is used to provide the second heat source for heating.
  • the valve 7, the ninth valve 21, the fifth valve 14 and the sixth valve 15 are also opened.
  • the fan 3 pressurizes the air and transfers it to the solid heat storage electric boiler 1 for heating, and the solid heat storage power boiler 1 transmits the heated air to the gas water.
  • the air-water heat exchanger 4 transfers the heat of the heated air to the once-circulated water in the air-water heat exchanger 4, the cooled air enters the fan 3 and is pressurized again; the once-circulated water after heating Enter the water-to-water heat exchanger 19 to provide a second heat source for the water-to-water heat exchanger 19.
  • the water-to-water heat exchanger 19 uses the second heat source to heat the circulating water in the water-to-water heat exchanger 19 to supply heat to the heat users 18.
  • the dynamic energy storage device 2 is used to provide a heat source.
  • the third valve 10 and the tenth valve 24 are opened, and the other valves are closed.
  • the dynamic energy storage device 2 provides a first heat source for the refrigeration unit 13, and the refrigeration unit 13 uses the first heat source to cool the cold user 11; when the energy of the dynamic energy storage device 2 is insufficient, the solid heat storage electric boiler 1 is used to provide a second The heat source is cooled.
  • the second valve 8 and the eighth valve 20 are also opened.
  • the fan 3 pressurizes the air and transfers it to the solid heat storage electric boiler 1 for heating.
  • the solid heat storage power boiler 1 transfers the heated air to the air-water heat exchanger. 4;
  • the air-water heat exchanger 4 transfers the heat of the heated air to the primary circulating water in the air-water heat exchanger 4, the cooled air enters the fan 3 and is pressurized again; the heated primary circulating water enters the refrigeration unit 13.
  • the refrigeration unit 13 uses the second heat source to cool the cold user 11.
  • the foregoing embodiment is only an implementation manner of the solid heat storage electric boiler heating and cooling system coupled with dynamic energy storage during heating and cooling.
  • This application is not limited to this. In practical applications, Heating and cooling can also be achieved in other ways.
  • the solid heat storage electric boiler heating and cooling system coupled with dynamic energy storage further includes: a first calorimeter 22, a second calorimeter 16, and a third calorimeter 5.
  • a first calorimeter 22 is connected between the heat exchanger 4 and the water-to-water heat exchanger 19, and the first calorimeter 22 calculates the first heating ratio and the first cooling ratio of the solid heat storage electric boiler 1; the water-to-water heat exchanger 19 and the heat user
  • a second calorimeter 16 is connected between 18, the second calorimeter 16 calculates the heat demand of the thermal user 18;
  • a third calorimeter 5 is connected between the dynamic energy storage device 2 and the refrigeration unit 13, and the third calorimeter 5 calculates dynamic energy storage The second heating ratio and the second cooling ratio of the device 2.
  • the solid heat storage electric boiler heating and cooling system coupled with dynamic energy storage further includes a programmable logic controller (PLC) connected to the first calorimeter 22, the second calorimeter 16 and the third calorimeter. 5.
  • PLC programmable logic controller
  • the programmable logic controller controls the heat supply or cooling capacity of the dynamic energy storage device 2 according to the first heating ratio, the first cooling ratio, the heat demand, the second heating ratio, and the second cooling ratio.
  • the first calorimeter 22 calculates the first heat supply ratio and the first refrigeration ratio of the solid heat storage electric boiler 1, and when calculating the economic analysis, the contribution amount of the solid heat storage electric boiler 1 can be seen, and the second calorimeter 16 calculates the heat demand of the thermal user 18, and the third calorimeter 5 calculates the second heating ratio and the second cooling ratio of the dynamic energy storage device 2.
  • the programmable logic controller can prioritize the dynamics according to the heat demand of the thermal user 18
  • the energy storage device 2 supplies heat or refrigeration, and the shortcomings are supplemented by a solid heat storage electric boiler 1.
  • the dynamic energy storage device provides 150KW of heat for 3 hours, and the rest of the heat needs to be provided by the solid heat storage electric boiler.
  • the continuous heating or cooling for 24 hours can be obtained.
  • the contribution rate of the dynamic energy storage device is 9.4%, while the contribution rate of the solid heat storage electric boiler is 90.6%.
  • the solid-state heat storage electric boiler heating and cooling system coupled with dynamic energy storage further includes: an additional pump 23, and an additional pump is connected between the gas-water heat exchanger 4 and the water-water heat exchanger 19.
  • the increase pump 23 is connected to a programmable logic controller, and the programmable logic controller controls the increase of the pump 23 to stabilize the pressure of the circulating water.
  • the solid heat storage electric boiler heating and cooling system coupled with dynamic energy storage further includes a first thermometer 6, a gas-water heat exchanger 4 and a water-water heat exchanger 19 connected to the first A thermometer 6, the programmable logic controller is connected to the first thermometer 6 and the fan 3, and the programmable logic controller adjusts the air flow through the fan 3 according to the value of the first thermometer 6.
  • the programmable logic controller when the value of the first thermometer 6 exceeds the set first temperature value, the programmable logic controller sends out a first high temperature alarm signal; when the value of the first thermometer 6 exceeds the set second temperature In the case of the temperature value, the programmable logic controller controls the fan 3 to stop working.
  • the solid heat storage electric boiler heating and cooling system coupled with dynamic energy storage further includes a second thermometer 9, and a second thermometer 9 is connected between the water-water heat exchanger 19 and the heat user 18.
  • the programmable logic controller is connected to the second thermometer 9, and when the value of the second thermometer 9 exceeds the set third temperature value, the programmable logic controller sends a second high temperature alarm signal.
  • the fan includes a variable frequency fan.
  • a calorimeter is provided in the solid heat storage electric boiler heating and cooling system coupled with dynamic energy storage provided in the embodiment of the present application to calculate the heating ratio, the cooling ratio of the solid heat storage electric boiler, and the user's heat demand. Priority can be given to the total heat demand.
  • the dynamic energy storage device is dispatched to supply heat, and the shortcomings are supplemented by the boiler to achieve the maximum utilization of energy.
  • a thermometer is set in the system, and the air flow of the fan can be adjusted according to the value of the thermometer. When the temperature count value is high, a high-temperature alarm signal is issued to remind the air-water heat exchanger and the water outlet of the water-water heat exchanger to have a high temperature to avoid air-water. Equipment such as heat exchangers and water-to-water heat exchangers are damaged.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
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Abstract

La présente invention concerne un système de chauffage et de réfrigération à chaudière électrique à stockage de chaleur solide couplé à un stockage d'énergie dynamique, comprenant : un dispositif de stockage d'énergie dynamique (2), une chaudière électrique à stockage de chaleur solide (1), un ventilateur (3), un échangeur de chaleur air-eau (4), un échangeur de chaleur eau-eau (19) et une unité de réfrigération (13). Le dispositif de stockage d'énergie dynamique (2) est configuré pour fournir une première source de chaleur pour l'unité de réfrigération (13) pour conduire une réfrigération, ou le dispositif de stockage d'énergie dynamique (2) est configuré pour fournir la première source de chaleur pour conduire le chauffage ; l'unité de réfrigération (13) est configurée pour utiliser la première source de chaleur pour conduire la réfrigération ; le ventilateur (3) est configuré pour transférer l'air vers la chaudière électrique à stockage de chaleur solide (1) pour chauffage après que l'air a été mis sous pression ; la chaudière électrique à stockage de chaleur solide (1) est configurée pour transférer l'air vers l'échangeur de chaleur air-eau (4) après que l'air a été chauffé et transférer la chaleur dans l'air à l'eau de circulation primaire dans l'échangeur de chaleur air-eau (4) ; l'eau de circulation primaire chauffée fournit une deuxième source de chaleur pour l'unité de réfrigération (13) pour conduire la réfrigération ; ou l'eau de circulation primaire chauffée fournit la deuxième source de chaleur pour l'échangeur de chaleur eau-eau (19), et l'échangeur de chaleur eau-eau (19) est configuré pour utiliser la deuxième source de chaleur pour chauffer l'eau de retour de circulation dans l'échangeur de chaleur eau-eau (19).
PCT/CN2019/102250 2018-09-26 2019-08-23 Système de chauffage et de réfrigération à chaudière électrique à stockage de chaleur solide couplé à un stockage d'énergie dynamique WO2020063224A1 (fr)

Applications Claiming Priority (2)

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CN201811125050.7A CN109442533A (zh) 2018-09-26 2018-09-26 一种耦合动态储能的固体蓄热电锅炉供热制冷系统
CN201811125050.7 2018-09-26

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CN110578962B (zh) * 2019-08-14 2021-05-07 长沙理工大学 一种耦合电转气设备的供热系统协同控制方法及控制装置
CN112112693A (zh) * 2020-10-19 2020-12-22 中国科学院理化技术研究所 采用电蓄热的液态空气储能系统

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CN102954586A (zh) * 2011-08-30 2013-03-06 朱杰 移动式高温固体蓄热电锅炉供暖、制冷系统
CN205119567U (zh) * 2015-11-27 2016-03-30 佛山市海天调味食品股份有限公司 一种应用于二次热能回收的动态储能热水罐
CN205754122U (zh) * 2016-07-14 2016-11-30 徐甲兴 适用于高原高寒地区的光伏蓄热供热系统
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