WO2021253313A1 - Chauffe-eau solaire à économie d'énergie - Google Patents

Chauffe-eau solaire à économie d'énergie Download PDF

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Publication number
WO2021253313A1
WO2021253313A1 PCT/CN2020/096742 CN2020096742W WO2021253313A1 WO 2021253313 A1 WO2021253313 A1 WO 2021253313A1 CN 2020096742 W CN2020096742 W CN 2020096742W WO 2021253313 A1 WO2021253313 A1 WO 2021253313A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
hot water
energy
pipe
heat preservation
Prior art date
Application number
PCT/CN2020/096742
Other languages
English (en)
Chinese (zh)
Inventor
王强
宋帅迪
刘�文
Original Assignee
南通大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 南通大学 filed Critical 南通大学
Priority to PCT/CN2020/096742 priority Critical patent/WO2021253313A1/fr
Publication of WO2021253313A1 publication Critical patent/WO2021253313A1/fr

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Classifications

    • 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
    • F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00—Arrangements for controlling solar heat collectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F24S80/30—Arrangements for connecting the fluid circuits of solar collectors with each other or with other components, e.g. pipe connections; Fluid distributing means, e.g. headers
    • 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
    • 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

Definitions

  • the invention relates to an energy-saving solar water heater, which belongs to the technical application field of energy-saving and emission reduction.
  • solar water heaters are water heater equipment that our country vigorously promotes popularization. Compared with other water heaters, solar water heaters not only save conventional energy, do not produce any pollutants or wastes, and can efficiently produce hot water, but also have almost zero operating costs. Long-term use has good economic benefits and a long service life, which is a practical response. my country's call for building an energy-saving and environment-friendly society. Solar water heaters have many advantages, but even so, it also has some technical shortcomings that limit its development.
  • solar water heaters are generally installed on the roof, and the hot water delivery pipes need to extend from the roof to the room.
  • the cold water stored in a large number of pipes will be directly discharged, causing a waste of water resources; while the hot water flowing through the long pipes will cause excessive heat loss and lower water temperature; after use, it will stay in The hot water in the pipeline cannot be used, and waste is produced again; and in winter, the pipeline exposed outdoors is easy to freeze and crack.
  • the purpose of the present invention is to overcome the above-mentioned problems of the prior art and propose an energy-saving solar water heater that will not cause waste of cold water and hot water in the pipeline.
  • the energy-saving solar water heater proposed by the present invention includes: a solar heat collection tube, a water tank and a hot water delivery pipe arranged from top to bottom.
  • the water inlet of the heat preservation barrel and the outlet pipe of the heat preservation barrel are equipped with a booster pump; the upper end of the hot water delivery pipe is provided with a two-position three-way solenoid valve, and the two-position three-way solenoid valve has a water inlet communicating with the water outlet of the water tank , The water outlet connected with the water inlet of the insulation barrel, and the air inlet connected with the atmosphere.
  • the invention adds a heat preservation barrel to store hot water for users to use.
  • the hot water delivery pipe In the normal state, there is no water in the hot water delivery pipe.
  • the water tank By switching the state of the two-position three-way solenoid valve at the upper end of the hot water delivery pipe, the water tank can be intermittently filled with water to the insulation barrel.
  • the hot water in the pipe flows into the insulation barrel under the action of gravity, which effectively utilizes the hot water in the pipe and avoids waste of hot water. Since there is no water in the hot water delivery pipe under normal conditions, it also solves the problem of energy waste caused by the hot water staying in the pipe for a long time, and the hot water delivery pipe is easy to be frozen and cracked in winter.
  • Figure 1 is a schematic diagram of the energy-saving solar water heater of the present invention.
  • 1-Solar collector tube 2-Water tank, 3-Hot water delivery pipe, 4-Insulation barrel, 5-Two-position three-way solenoid valve, 6-Outlet pipe, 7-Booster pump, 8-Cut off solenoid valve, 9- Bracket.
  • the energy-saving solar water heater of this embodiment mainly includes: a solar heat collection tube 1 (using a vacuum heat collection tube), a water tank 2, a hot water delivery tube 3 arranged from top to bottom, and a heat preservation barrel 4 located indoors.
  • the solar collector tube 1 and the water tank 2 are fixed on the roof by a bracket 9.
  • the lower end of the hot water delivery pipe 3 is connected to the water inlet of the insulation barrel 4, the water outlet pipe 6 of the insulation barrel 4 is installed with a booster pump 7, and the hot water supply is realized through the insulation barrel 4.
  • the upper end of the hot water delivery pipe 3 is provided with a two-position three-way solenoid valve 5.
  • the two-position three-way solenoid valve 5 has a water inlet communicating with the water outlet of the water tank 2, and an outlet communicating with the water inlet of the thermos 4 Nozzle, and the air inlet that communicates with the atmosphere.
  • the two-position three-way solenoid valve 5 has two status positions.
  • the water inlet of the two-position three-way solenoid valve 5 is connected to the water outlet, and the air inlet is closed.
  • the water bucket of the solar water heater starts to discharge hot water, which is delivered into the thermal insulation bucket 4 through the hot water delivery pipe 3.
  • the water inlet of the two-position three-way solenoid valve 5 is closed, and the air inlet is connected to the water outlet.
  • the bucket of the solar water heater stops discharging hot water
  • the upper end of the hot water delivery pipe 3 is in communication with the atmosphere, and the hot water in the pipe falls into the insulating bucket 4 under its own weight.
  • the lower end of the hot water delivery pipe 3 is provided with a cut-off solenoid valve 8 to block the hot air in the insulation barrel from being discharged to the outside through the hot water delivery pipe.
  • the hot water delivery pipe 3 is wrapped with an insulation layer to further prevent heat loss.
  • an electric heater can be provided in the insulation barrel.
  • the electric heater heats the water in the heat preservation barrel to meet the needs of use and improve the applicability of the solar water heater in rainy days or in winter.
  • the water in the water tank of the water heater can reach a certain temperature (for example, 25°C), and this part of the water flows into the insulation barrel for further heating, which can meet the needs of higher water temperature (for example, 40°C). Energy is effectively used and energy consumption is reduced.
  • the solar water heater When the solar water heater is in a normal state, the water outlet of the water tank is in a closed state, and hot water is provided through a heat preservation barrel.
  • the two-position three-way solenoid valve When the water level in the insulation barrel drops to a certain height, the two-position three-way solenoid valve is activated to make the hot water in the water tank fall into the insulation barrel through the pipe. After a set time (for example, 10s), the two-position three-way solenoid valve Switch to the original state, the water outlet of the water tank is closed, the upper end of the hot water delivery pipe is open to the atmosphere, and the remaining hot water in the pipe flows into the insulation barrel under its own weight. Therefore, this part of the hot water is effectively used and no energy is wasted.
  • the water release mode is turned on again, and the cycle is repeated, and the effective use of hot water can be realized through intermittent water replenishment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

La présente invention concerne un chauffe-eau solaire à économie d'énergie. Le chauffe-eau solaire à économie d'énergie comprend un tuyau de collecte de chaleur solaire, un réservoir d'eau, un tuyau de transport d'eau chaude et un cylindre de conservation de chaleur. L'extrémité inférieure du tuyau de transport d'eau chaude est raccordée à une entrée d'eau du cylindre de conservation de chaleur, et une pompe de surpression est installée sur un tuyau de sortie d'eau du cylindre de conservation de chaleur; et une vanne électromagnétique à trois voies à deux positions est disposée à l'extrémité supérieure du tuyau de transport d'eau chaude, et la vanne électromagnétique à trois voies à deux positions est pourvue d'une entrée d'eau en communication avec une sortie d'eau du réservoir d'eau, une sortie d'eau en communication avec l'entrée d'eau du cylindre de conservation de chaleur et une entrée d'air en communication avec l'air ambiant. Le cylindre de conservation de chaleur est en outre conçu pour stocker de l'eau chaude destinée à être utilisée par les utilisateurs. Dans un état normal, aucune eau n'est présente dans le tuyau de transport d'eau chaude, l'injection d'eau intermittente depuis le réservoir d'eau vers le cylindre de conservation de chaleur est obtenue au moyen d'une commutation d'état de la vanne électromagnétique à trois voies à deux positions au niveau de l'extrémité supérieure du tuyau de transport d'eau chaude; et après l'évacuation de l'eau du réservoir d'eau, l'extrémité supérieure du tuyau de transport d'eau chaude est en communication avec l'air ambiant, et de l'eau chaude dans le tuyau s'écoule dans le cylindre de conservation de chaleur sous l'action de la gravité, de telle sorte que l'eau chaude dans le tuyau est efficacement utilisée, et le gaspillage d'eau chaude est évité. Dans l'état normal, aucune eau n'est présente dans le tuyau de transport d'eau chaude, de telle sorte que les problèmes selon lesquels des déchets d'énergie sont provoqués par la rétention à long terme de l'eau chaude dans le tuyau, et selon lesquels le tuyau de transport d'eau chaude est sujet à la fissuration par le gel en hiver, sont résolus.
PCT/CN2020/096742 2020-06-18 2020-06-18 Chauffe-eau solaire à économie d'énergie WO2021253313A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/096742 WO2021253313A1 (fr) 2020-06-18 2020-06-18 Chauffe-eau solaire à économie d'énergie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/096742 WO2021253313A1 (fr) 2020-06-18 2020-06-18 Chauffe-eau solaire à économie d'énergie

Publications (1)

Publication Number Publication Date
WO2021253313A1 true WO2021253313A1 (fr) 2021-12-23

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Country Status (1)

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WO (1) WO2021253313A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2469383Y (zh) * 2001-01-31 2002-01-02 淄博华扬太阳能热水器有限公司 管道排空防冻式太阳能热水器
CN201593888U (zh) * 2010-02-03 2010-09-29 柳延东 消除太阳能热水器热水管中冷水的装置
CN201926135U (zh) * 2010-10-21 2011-08-10 焦胜利 以太阳能为主要热源的热水供给系统
CN204757405U (zh) * 2015-06-25 2015-11-11 梁小炎 一种太阳能制备热水系统
CN212157699U (zh) * 2020-05-29 2020-12-15 南通大学 一种节能型太阳能热水器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2469383Y (zh) * 2001-01-31 2002-01-02 淄博华扬太阳能热水器有限公司 管道排空防冻式太阳能热水器
CN201593888U (zh) * 2010-02-03 2010-09-29 柳延东 消除太阳能热水器热水管中冷水的装置
CN201926135U (zh) * 2010-10-21 2011-08-10 焦胜利 以太阳能为主要热源的热水供给系统
CN204757405U (zh) * 2015-06-25 2015-11-11 梁小炎 一种太阳能制备热水系统
CN212157699U (zh) * 2020-05-29 2020-12-15 南通大学 一种节能型太阳能热水器

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