WO2015070714A1 - Système et procédé d'utilisation complète de l'énergie solaire à concentration sur plateforme flottante - Google Patents

Système et procédé d'utilisation complète de l'énergie solaire à concentration sur plateforme flottante Download PDF

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Publication number
WO2015070714A1
WO2015070714A1 PCT/CN2014/090165 CN2014090165W WO2015070714A1 WO 2015070714 A1 WO2015070714 A1 WO 2015070714A1 CN 2014090165 W CN2014090165 W CN 2014090165W WO 2015070714 A1 WO2015070714 A1 WO 2015070714A1
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WIPO (PCT)
Prior art keywords
floating
solar energy
power generation
solar
air conditioning
Prior art date
Application number
PCT/CN2014/090165
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English (en)
Chinese (zh)
Inventor
俞忠良
林筱华
廖京盛
王倩
俞琦
黎捷
Original Assignee
苏州赛帕太阳能科技有限公司
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Publication of WO2015070714A1 publication Critical patent/WO2015070714A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/70—Waterborne solar heat collector modules
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for desalination
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
    • F24F2005/0064—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground using solar energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/20—Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
    • 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
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • 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
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/138—Water desalination using renewable energy
    • Y02A20/142—Solar thermal; Photovoltaics
    • 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
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment
    • Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking

Definitions

  • the invention relates to a solar energy comprehensive utilization system, in particular to a floating focused solar energy comprehensive utilization system and method which have the functions of photothermal power generation, seawater desalination and air conditioning.
  • solar energy As a clean energy source, solar energy has the incomparable superiority of fossil energy. Specifically, solar energy is both primary energy and renewable energy. It is rich in resources, can be used free of charge, without transportation, and has no pollution to the environment. It has become the most eye-catching, most developed and widely used. clean energy.
  • solar photovoltaic power generation technology there are two main types of solar energy utilization technologies, one is solar photovoltaic power generation technology, and the other is solar thermal power generation technology. Because of the low efficiency and high cost, and the manufacturing process of silicon wafer is a process of high energy consumption, high water consumption and high pollution, solar photovoltaic power generation technology is not clean energy as a whole, but solar thermal power generation technology is not. This defect.
  • a common solar thermal power generation technology is mainly to use solar energy to convert circulating water into steam to drive turbine generators, so it can also be named solar concentrating thermoelectric technology.
  • the existing solar thermal power generation technology is mainly applied on land, but it is still less applied to coastal areas or marine areas, and solar energy utilization efficiency is still relatively low.
  • Desalination is an effective means to increase the amount of water resources from the source. Desalination as a strategic choice to solve the problem of lack of fresh water resources is not only a consideration of the level of water quality or technical advantages, but also the inevitable requirement for ensuring national security and sustainable development. It is an inevitable choice for the future survival and development of coastal areas.
  • China has the superior conditions for the development of seawater desalination, including: First, with the implementation of the development plan of a series of coastal areas from north to south approved by the state, the economic and social development of China's coastal areas will enter a new fast during the 12th Five-Year Plan period. During the development period, this provided a solid social and economic foundation for the development of seawater desalination; secondly, the coastline of China’s mainland has a total length of more than 18,000 kilometers, with 1 50 or so coastal cities, more than 6 5 0 5 0 More than 0 square meters of islands, this is a favorable geographical condition for the development of seawater desalination in China.
  • China's desalination of seawater also faces many challenges. Specifically, it has the following aspects: First, the research on key technologies for desalination is not solid, and the development of core equipment is not enough; Second, the lack of large-scale desalination equipment processing and manufacturing And engineering practice of operation and maintenance; third, the integration of key equipment manufacturing processes is not high, the equipment is not enough, and the localization rate is low; Fourth, the seawater desalination standard system, the construction of policies and regulations are relatively lagging behind; the fifth is facing enormous international competitive pressure.
  • One of the objects of the present invention is to provide a floating-focus solar energy comprehensive utilization system, which has the functions of photothermal power generation, seawater desalination, air conditioning, etc., and can fully utilize solar energy in coastal areas and marine areas, and its structure. It is simple and easy to operate, thereby overcoming the deficiencies in the prior art.
  • Another object of the present invention is to provide a method for comprehensive utilization of floating-focus solar energy.
  • a floating-focus solar energy comprehensive utilization system comprising:
  • At least one floating platform is At least one floating platform
  • At least a solar collector system for collecting solar energy in a focused manner and heating the working medium provided by at least one energy storage system
  • a power generation system for receiving at least a thermal medium formed by heating of a solar heat collecting system and generating electricity
  • An air conditioning system for receiving at least a secondary thermal medium output by a power generation system and performing indoor heating or cooling of the building
  • At least a seawater desalination system for receiving reheating or solar energy output by the air conditioning system and performing seawater desalination
  • a hot water system for receiving at least a lower thermal medium output by the seawater desalination system and performing heat exchange
  • At least an energy storage system for supplying a hot working medium to a power generation system and receiving a low thermal working fluid output from the hot water system;
  • the solar heat collecting system, the energy storage system, the power generation system, the air conditioning system, the seawater desalination system and the hot water system are all installed on the floating platform.
  • the solar energy utilization system includes a plurality of floating platforms arranged in an array.
  • the solar heat collecting system, the energy storage system, the power generation system, the air conditioning system, the seawater desalination system, and the hot water system are installed on at least one floating platform.
  • the solar heat collecting system, the energy storage system, the power generation system, the air conditioning system, and the seawater desalination system are discretely distributed on more than two floating platforms.
  • the floating platform is fixedly connected to a fixed pillar formed on the island and the reef.
  • the pontoon includes a hollow pontoon body, and the pontoon body cavity is partitioned into a plurality of compartments.
  • a method for comprehensive utilization of floating-focus solar energy comprising:
  • the solar collector system collects the solar energy in a focused manner, heats the working fluid in the energy storage system, forms a thermal working medium, and then transports the thermal working medium into the power generation system for power generation, and then sends the secondary thermal working fluid output from the power generation system.
  • the air conditioning system heating or cooling the building interior, and then input the reheating fluid output from the air conditioning system or the electric power input system to the seawater desalination system to desalinate the seawater, and then output the seawater desalination system more
  • the hot working fluid is input into the hot water system; the low thermal working fluid output from the hot water system is again input into the energy storage system, and is again heated by the solar heat collecting system, and continues to circulate.
  • the solar energy comprehensive utilization method further comprises: after the hot working fluid outputted by the seawater desalination system flows through the hot water system, and then enters the energy storage system.
  • the temperature of the hot working medium is 300 ° C or higher, the temperature of the lower hot working medium is 80 ° C or lower, and the temperature of the low hot working medium is 50 ° C or lower.
  • the power generation system includes a waste heat generator for generating electricity
  • the air conditioning system includes an absorption type lithium bromide central air conditioner, an adsorption type air conditioner, and is not limited thereto.
  • the present invention has at least the following advantages: the floating-focus solar energy comprehensive utilization system realizes effective use of the clean energy of solar energy, and has high solar energy conversion efficiency, low energy consumption and small land occupation, and Both energy storage, power generation, air conditioning, desalination and heating Can produce significant social and economic benefits.
  • Figure 1 is a schematic diagram of a preferred embodiment of the present invention
  • FIG. 2 is a schematic structural view of a seawater desalination system according to a preferred embodiment of the present invention
  • FIG. 3 is a top plan view of a floating platform in accordance with a preferred embodiment of the present invention.
  • Figure 4 is a cross-sectional view of a floating platform in accordance with a preferred embodiment of the present invention.
  • Figure 5 is a top plan view of a floating stage array in accordance with a preferred embodiment of the present invention.
  • FIG. 6 is a schematic view showing a fixing structure of a floating platform according to a preferred embodiment of the present invention.
  • the components indicated by the reference numerals in the figures are: solar collector system 100, energy storage system 200, power generation system 300, air conditioning system 400, seawater desalination system 500, floating platform 600, hot water system 700, fixed Pillar 800; Fig. 2 one-effect evaporator 1, two-effect evaporator 2, three-effect evaporator 3, four-effect evaporator 4, starting vacuum system 5, seawater filter 6, condenser 7, steam heat compressor ( TVC) 8, running vacuum system 9, integrated dosing device 10, brine pump 11, product water pump 12, one-effect condensate pump 13, concentrated brine heat recovery period 14, one-effect condensate cooler 15, product water cooling Apparatus 16, reducing agent dosing system 17, heating steam desuperheating device 18, a-heated steam, b-condensed water discharge, c-cooled seawater discharge, d-finished water discharge, e-pretreatment system into seawater, f- Concentrated brine discharge, g-cooled seawater discharge.
  • the floating-focus solar energy comprehensive utilization system may include at least one floating platform 600 , a plurality of solar heat collecting systems 100 , a power generation system 300 , and an air conditioning system . 400, seawater desalination system 500, hot water system 700 and energy storage system 200, wherein the solar heat collection system, energy storage system, power generation system, air conditioning system, seawater desalination system, hot water system are installed on the floating platform on.
  • the working process may be: collecting the solar energy in a focused manner by the solar heat collecting system, heating the working medium in the energy storage system to form a thermal working medium, and then transferring the thermal working medium into the power generation system for power generation;
  • the secondary thermal working fluid outputted by the system is sent to the air conditioning system for heating or cooling in the building room; then the reheating fluid output from the air conditioning system is input into the seawater desalination system for desalination; the thermal output of the desalination system is further heated.
  • the hot water input system; the low thermal working fluid output from the hot water system is again input into the energy storage system, and is again heated by the solar collector system and continues to circulate.
  • the aforementioned floating platform can be fixed by a fixed pillar formed on an island reef.
  • the floating-focus solar integrated utilization system when the floating-focus solar integrated utilization system is applied, it is only necessary to install a focusing solar collector system, a desalination device, and the like on a floating platform, and is equipped with an air conditioner or the like.
  • the pontoon is pulled to a predetermined sea area by a tugboat or the like, and is fixedly connected to a fixed pillar formed on the reef or a fixed pillar deep into the seabed.
  • the floating platform includes a hollow floating platform body, and the floating body body cavity is divided into a plurality of compartments.
  • part of the cabin of the floating platform is filled with seawater for use as a sedimentation tank, and some of the tanks are used as a freshwater pool and a salt pool.
  • Other cabins can be fitted with portholes, air conditioning and other living facilities for use by staff.
  • the specific operation of the solar energy comprehensive utilization system by using the floating platform of the structure may be: constructing a production base on the mainland beach, and having a dock.
  • a number of solar collectors can be installed on one or more floating platforms to form a solar collector system, which is called “solar collector pontoon” and is numbered;
  • the desalination equipment can be installed on one or several floating platforms, which is called “water desalination equipment floating platform”.
  • some "solar collectors floating platform" upper compartment air conditioning system, etc. can be used as personnel living quarters, storage collateral, It can store essential food and vegetable or storage missiles and other military supplies, and use these floating platforms to form various offshore factories and sea villas.
  • solar collector systems, energy storage systems, power generation systems, air conditioning systems, and desalination systems can also be installed on the same floating platform, and they can be layered or divided into different compartments. Then, use a tugboat to drag the pontoon to a fixed location on the desired island or island reef.
  • the pontoon is filled with seawater to make the pontoon sink to the pillars on the reef, so that the pontoon can be firmly fixed.
  • multiple pontoons can be connected to each other to form a large piece (1000m3).
  • Solar solar desalination needs to occupy an area of about 20 acres) into an offshore platform (see Figure 5), its stability and self-sustainability.
  • the bottom compartment of some floating platforms can be used as a seawater sedimentation tank, and the upper compartment can be used as a freshwater pool, a concentrated salt water tank, a living compartment, a storage compartment, and the like.
  • the positions of the components in the floating-focus solar integrated utilization system may be:
  • the energy storage system can be installed in the upper compartment of several "solar heat collecting floating platforms”.
  • the power generation equipment is also installed in the cabins of several other “solar heat collecting floating platforms”.
  • the bottom tank of the general floating platform can be used as a seawater sedimentation tank, and the upper tank is used as a freshwater pool, a concentrated salt water tank, a living compartment, a storage compartment, and the like.
  • the working process of the floating-focus solar integrated utilization system can be:
  • the focusing type heat collecting system heats the high temperature heat conducting medium (ie, the working medium is heated to above 300 ° C), and the high temperature heat conducting medium is sent to the energy storage system for storage; the high temperature heat conducting medium is sent by the high temperature pump
  • the waste heat generator ie, power generation system
  • the seawater desalination equipment acts as an energy source to desalinate seawater
  • the distilled seawater desalination uses vacuum distillation at 70 ° C (even lower temperature)
  • the membrane type directly uses solar energy to make the seawater desalination; at the same time, it is sent to an air conditioning system (such as an adsorption or absorption air conditioner) to provide a comfortable living environment or a suitable storage environment (constant temperature warehouse); waste heat discharged
  • an air conditioning system such as an adsorption or absorption air conditioner
  • the medium more hot working medium supplies hot water to the people through the hot water system, and the low-heat working medium from the hot water system is heated into the solar heat collecting system. Complete the closed loop.
  • seawater desalination system As one of the specific application examples, it is a low-temperature distillation seawater desalination system, which can adopt the structural design shown in Fig. 2, which mainly adopts a membrane type or low-temperature seawater desalination process, and the main equipment of low-temperature seawater desalination may include One-effect evaporator 1, two-effect evaporator 2, three-effect evaporator 3, four-effect evaporator 4, starting vacuum system 5, seawater filter 6, condenser 7, steam heat compressor (TVC) 8, operation Vacuum system 9, integrated dosing device 10, brine pump 11, product water pump 12, one-effect condensate pump 13, concentrated brine heat recovery period 14, one-effect condensate cooler 15, product water cooler 16, reducing agent The dosing system 17, the heating steam desuperheating device 18, and the like.
  • the working principle is known to those skilled in the art according to the prior art, and has the characteristics of technical reliability, simple maintenance, and the like, and details are not described herein again.
  • the aforementioned solar heat collecting system is a novel focusing type heat collecting system, and the automatic tracking system is controlled by a single chip microcomputer, and adopts automatic tracking rotation synchronized with the earth operation.
  • the aforementioned energy storage system can employ techniques commonly used for thermal storage.
  • the aforementioned power generation system can use waste heat power generation and an organic Rankine power generation system.
  • the aforementioned air conditioning system can use lithium bromide absorption type central air conditioning or adsorption air conditioning technology.
  • the aforementioned heating system can use water heaters and central heating (hot water or heat medium) technology.
  • the present invention can realize large-scale implementation of a membrane type or low-temperature multi-effect distillation seawater desalination project, and has achieved a membrane-type or low-temperature multi-effect distillation seawater desalination of 50,000-100,000 tons/day, thereby It has produced significant social and economic benefits.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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  • Physics & Mathematics (AREA)
  • Hydrology & Water Resources (AREA)
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  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

Système et procédé d'utilisation complète de l'énergie solaire à concentration sur plateforme flottante ; le système comprend une plateforme flottante (600) et les ensembles suivants installés sur la plateforme flottante (600) : un système de collecte de chaleur à énergie solaire (100) au moins pour collecter l'énergie solaire par le biais d'un procédé de concentration, et pour chauffer un milieu actif fourni par un système de stockage d'énergie (200) ; un système de production d'électricité (300) au moins pour recevoir le fluide actif chaud chauffé par le système de collecte de chaleur à énergie solaire (100), et pour produire de l'électricité ; un système de conditionnement d'air (400) au moins pour recevoir le deuxième milieu actif chaud sorti par le système de production d'électricité (300), et pour le chauffage et la réfrigération ; un système de dessalement d'eau de mer (500) au moins pour recevoir le troisième milieu actif chaud sorti par le système de conditionnement d'air (400), et pour dessaler l'eau de mer ; un système à eau chaude (700) au moins pour recevoir le quatrième milieu actif chaud sorti par le système de dessalement d'eau de mer (500), et pour apporter l'eau chaude ; et un système d'emmagasinage d'énergie (200) au moins pour recevoir et sortir le milieu actif chaud. Le système et le procédé associé utilisent efficacement l'énergie solaire, ont une efficacité de conversion d'énergie solaire élevée, une faible consommation d'énergie, un faible encombrement et de multiples fonctions, et peuvent être utilisés même sur des îles inhabitées.
PCT/CN2014/090165 2013-11-13 2014-11-03 Système et procédé d'utilisation complète de l'énergie solaire à concentration sur plateforme flottante WO2015070714A1 (fr)

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CN201310566272.3A CN103557602A (zh) 2013-11-13 2013-11-13 浮台式聚焦型太阳能综合利用系统及方法
CN201310566272.3 2013-11-13

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CN106143825B (zh) * 2015-04-01 2018-10-23 武汉理工大学 海上浮式水电联产平台
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CN201425340Y (zh) * 2009-04-03 2010-03-17 张秀平 节能环保太阳能蓄热供暖发电设备
CN203229397U (zh) * 2013-02-28 2013-10-09 刘文晏 太阳能海水淡化装置
CN103557602A (zh) * 2013-11-13 2014-02-05 苏州赛帕太阳能科技有限公司 浮台式聚焦型太阳能综合利用系统及方法
CN203719156U (zh) * 2013-11-13 2014-07-16 苏州赛帕太阳能科技有限公司 浮台式聚焦型太阳能综合利用系统

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CN113551427A (zh) * 2021-07-20 2021-10-26 珠海格力电器股份有限公司 热水器的控制方法、装置、热水器及存储介质
CN113551427B (zh) * 2021-07-20 2022-07-12 珠海格力电器股份有限公司 热水器的控制方法、装置、热水器及存储介质

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