CN209801827U - solar energy application system for solar energy heat collection, heat storage and heat release - Google Patents
solar energy application system for solar energy heat collection, heat storage and heat release Download PDFInfo
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- CN209801827U CN209801827U CN201920249670.5U CN201920249670U CN209801827U CN 209801827 U CN209801827 U CN 209801827U CN 201920249670 U CN201920249670 U CN 201920249670U CN 209801827 U CN209801827 U CN 209801827U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02E10/44—Heat exchange systems
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Abstract
The utility model discloses a solar energy application system of solar energy collection, heat-retaining and heat release, including thermal-arrest system, heat-retaining system and heat release system, ground frozen soil layer below is arranged in to the heat-retaining system, thermal-arrest system, it is right to be used for the heat supply of heat-retaining system, thermal-arrest system is equipped with the holding structure that the sensitive surface has clear glass outward, the heat-retaining system is connected through getting the heat calandria the heat release unit of heat release system. Adopt the utility model discloses the solar energy collection and the secret heat-retaining system that the structure set up, thermal-arrest and get hot independent operation can carry out effective thermal-arrest when heating in winter consumes the heat, supplements the heat in the holding water box to improve the efficiency of thermal-arrest end, realize the balance of thermal-arrest and heat supply, long-term the application.
Description
Technical Field
The invention relates to the technical field of solar heat storage and heat extraction, in particular to a solar energy application system for solar heat collection, heat storage and heat release.
Background
The existing solar photo-thermal conversion technology is quite mature, and the conversion rate of converting light energy into heat energy can reach 80-90% according to relevant data. The heat capacity of water is large, the capacity of storing heat is large, 1.16-degree electric energy is needed for heating one ton of water at one degree centigrade, and the corresponding heat energy can be released by reducing one ton of water at one degree, which is equivalent to completely converting 1.16-degree electric energy into heat energy. If the water temperature is 35-50 ℃, the solar energy water heater has practical significance for heating in winter, and therefore, the improvement of the utilization rate of solar energy is an important means for energy conservation and environmental protection.
The heating system in the prior art has poor heat insulation effect, and the drawn energy is lost before being utilized. The solar energy drawn in summer is excessive and is not used completely, and the heat required in winter is more, so that the heat supply is relatively insufficient compared with the heat supply of a heat collecting system.
Chinese patent 201610885481.8 discloses a seasonal composite heat storage system, which includes a heat source unit, a heat storage unit, and a heat release unit. In spring, summer and autumn, the heat source unit stores heat into the heat storage unit through the heat exchanger, and the heat storage unit comprises a heat storage water tank and an auxiliary heat storage space formed by soil bodies arranged at the periphery of the water tank and provided with buried pipes. In winter, a heat release system (a circulating water pump, a heat exchange coil and a heat supply assembly) is utilized to transport heat from the heat storage space to a heat supply section for heat release. The seasonal underground composite heat storage system combines a hot water heat storage mode and a buried pipe heat storage mode to form a seasonal underground composite heat storage system with two coupled heat storage modes, and solves the problems of large heat loss, high initial investment cost, low system efficiency and the like of the traditional seasonal underground heat storage system. This technique has the following disadvantages: 1. the heat source unit has poor heat collecting effect. Because the heat-insulating effect of the heat collecting system is poor, when the temperature of the hot water storage body is increased to be higher, the heat lost by the heat collecting system is larger even in summer, and the heat collecting effect is greatly influenced. The system manifests itself without heat collection in the winter, which is the same intensity as the summer. 2. Because the thermal characteristics of rock-soil bodies are good heat resistance and poor heat conduction performance, the heat storage of the central heat storage water body is beneficial during heating, but the energy used for heating comes from a heat collection system, and the heat collection function is lost; moreover, the heat release efficiency is low, and the heat release is not favorable. 3. The heat collection and the heat release adopt the same group of heat exchange calandria, which causes inconvenience in the management of the whole system, and the heat collection and the heat release can not be used simultaneously, sometimes even causes heat loss influence.
therefore, there is a need for a solar heat storage and supply system that can improve the heat preservation effect and balance the supply and demand.
Disclosure of Invention
The invention aims to provide a solar energy application system for collecting, storing and releasing solar energy, which aims to solve the problem of unbalanced heat collection and heat supply in the prior art.
In order to achieve the purpose, the invention provides the following scheme:
The invention provides a solar energy application system for collecting, storing and releasing solar energy, which comprises a heat collecting system, a heat storing system and a heat releasing system, wherein the heat storing system is arranged below a ground frozen soil layer,
The heat collecting system is used for supplying heat to the heat storage system, a heat insulation structure with a light receiving surface provided with transparent glass is arranged outside the heat collecting system,
The heat storage system is internally provided with a heat taking calandria connected with a heat release unit of the heat release system.
Preferably, the heat storage system comprises a heat-preservation water tank, a heat-releasing calandria of the heat collection system is arranged below the heat-preservation water tank, and the heat-releasing calandria penetrates through the heat-preservation water tank and is connected with a heat collection unit of the heat collection system.
Preferably, the heat-insulating water tank is buried in underground soil or in an underground structure below underground frozen soil.
Preferably, a spongy or flocculent structure is arranged on the inner wall of the heat storage system.
Preferably, an air pipeline is arranged above the heat storage system and is communicated into the chamber; and a heat taking exhaust pipe communicated with the air pipeline is arranged in the heat storage system and heats the air inside the heat taking exhaust pipe.
preferably, a ventilation channel is arranged on the outer side of the heat storage system, is communicated with the air pipeline, and heats air in the ventilation channel.
Preferably, the heat collecting system is provided with a circulating pump, and the heat releasing system is provided with a circulating pump.
compared with the prior art, the invention has the following beneficial technical effects:
1. The solar energy application system for solar energy heat collection, heat storage and heat release provided by the invention adds a heat insulation structure which is mainly characterized by double-layer super white glass on the light receiving surface to the solar energy heat collection unit, so that the light receiving amount is limited, and the heat loss of the heat collection system is greatly reduced. The heat collecting requirement of the heat storage system when the water temperature is high can be met, and effective heat collection can be carried out in winter. In addition, a reflecting mirror is additionally arranged on the backlight surface of the heat collecting unit, and the utilization rate of light energy is increased by utilizing sunlight reflection.
2. The solar energy application system for collecting heat, storing heat and releasing heat by solar energy provided by the invention adopts independent operation of heat collection and heat extraction, can effectively collect heat while consuming heat during heating in winter, supplements the heat in the heat-insulating water tank, can meet the requirement of long-time heating in winter more and is convenient to manage.
3. according to the solar energy application system for collecting, storing and releasing solar energy, the spongy or flocculent structure is arranged on the inner wall of the heat-insulating water tank, so that water on the inner layer and the outer layer of the heat-insulating water tank is prevented from generating convection flow, the heat loss is reduced, and the heat-insulating effect is improved.
4. The solar energy application system for solar energy heat collection, heat storage and heat release is also provided with a corresponding ventilation structure which is introduced into a room, an air channel is arranged in a water body on the upper part of the heat preservation water tank, and heated air is introduced into the room. If the heat storage water tank is arranged in an underground structure, a movable heat insulation layer can be arranged on the outer side of the heat storage water tank, and the heat insulation layer is removed to provide heat energy for air when needed by utilizing an air channel in the building.
5. The solar energy application system for collecting solar energy, storing heat and releasing heat provided by the invention has the advantages that the three systems are respectively independent and do not interfere with each other, and each system can basically reach a quasi-closed state, so that the system is beneficial to stable operation of equipment and convenient management.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of a solar energy application system for collecting, storing and releasing solar energy according to the present invention;
Wherein 1-1: heat collection unit, 1-2: heat release calandria
2: heat storage water tank
3-1: first heat taking calandria, 3-2: a second heat taking calandria, 3-3: floor heating coil pipe, 3-4: radiator, 3-5: an air line.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a solar energy application system for collecting, storing and releasing solar energy, which aims to solve the problems in the prior art, realize high-efficiency heat collection and release and overcome the problems of poor heat collection effect and low heat utilization efficiency in winter.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The embodiment provides a solar energy application system for collecting, storing and releasing solar energy, as shown in fig. 1, which includes a heat collecting system, a heat storing system and a heat releasing system.
the heat collection system in the embodiment comprises a heat collection unit 1-1, wherein the heat collection unit 1-1 is connected with a heat release discharge pipe 1-2 through a pipeline, so that solar energy is converted into heat energy, and the temperature of water serving as a heat transfer medium is continuously increased. Specifically, the heat collecting unit 1-1 adopts common solar heat collecting equipment to absorb solar energy, absorbed heat is transferred to a hot water storage body of the hot water storage tank 2 through a heat releasing exhaust pipe 1-2 arranged at the inner lower part of the hot water storage tank 2, a heat collecting part of the heat collecting unit is arranged on the light facing surface and the top of a building, a heat insulation structure comprising double-layer super white glass (light receiving surface) with good light transmittance is arranged outside the heat storage unit, of course, single-layer super white glass can be adopted, other outer sides of the heat insulation structure are sealed and insulated by using a house structure and other maintenance sealing measures, and the heat collecting equipment is completely arranged in a sealed environment, such as a light steel structure, a brick concrete structure, a reinforced concrete. The heat collecting part receives the sunlight transmitted through the ultra-white glass and converts the sunlight into heat energy. In the above embodiment, the heat collecting unit 1-1 is connected to the heat discharging pipes 1-2, and the heat collecting system is independently closed and circulates by using a circulating pump (water pump) as power. When the heat collecting pipe is adopted, a mirror can be arranged on the backlight surface of the heat collecting pipe, and the utilization efficiency of light is improved by utilizing light reflection. The whole heat collection system needs to be well provided with a heat insulation structure, so that the heat loss is reduced to the maximum extent. The heat collecting system is provided with an automatic control device for controlling the opening and closing of the heat collecting system.
The heat storage system comprises a heat storage water tank 2 which is arranged below a frozen soil layer and can be directly buried in underground soil or underground structures arranged below the underground frozen soil, and a flocculent or sponge-shaped structure which prevents water from flowing is arranged inside the heat storage water tank 2 along the outer layer of the inner wall, so that heat loss is reduced by using the heat resistance of water, for example, water absorbing materials such as sponge and the like. The heat storage water tank 2 is externally insulated mainly by the heat resistance function of soil; when the heat storage water tank 2 is arranged in an underground structure, a necessary heat insulation structure can be arranged outside, so that the heat storage water tank is convenient to manage. A heat release calandria 1-2 of the heat collection system is arranged at the lower part of the heat storage water tank 2, which is beneficial for the heat storage water body to absorb and collect the heat of the heat collection system; the first heat taking exhaust pipe 3-1 of the heat release system is a partial air heat taking structure, and the second heat taking exhaust pipe 3-2 is used for heating by hot water and is arranged at the upper part of the heat storage water tank 2, so that the heat release system can absorb heat.
The heat release unit (heating unit) of the heat release system comprises hot water heating and/or hot air heating, and the heat is absorbed from the hot water storage tank 2 by using air and water as media and released to a heating place, so that the circulation is performed between the air and the water. The hot water heating is a common heating mode by utilizing hot water through heating radiators 3-4, floor heating coils 3-3 and other equipment, the heat of the water required in the hot water heating system is obtained through a second heat taking exhaust pipe 3-2 arranged at the upper part of a heat storage water tank 2, the heating system is independently closed, and a water pump is used as power to circulate; the hot air heating utilizes a ventilation pipeline arranged at the upper part or the outer side of the heat storage water tank 2 to heat air, and the air enters the indoor for circulation and heat extraction through air channels 3-5 (pipelines or channels, which are divided into two groups of channels of air inlet and air outlet and are similar to a central air conditioner) arranged in the building. The air inlet and exhaust channels are provided with opening and closing devices, each room is provided with an air inlet and an air outlet, and meanwhile, a fan can be additionally arranged for circulation, and a passive circulation mode can also be adopted.
As another air heating method, an air passage 8 having a ventilation structure communicating with the inside of the building is provided outside the heat storage water tank 2, thereby achieving the same effect of heating air.
It should be noted that, in this case, the pipelines penetrating through the heat-insulating water tank and the heat-insulating structure all need to be sealed, the metal pipeline at the joint with the heat-insulating water tank can be welded, and the other structures can be additionally provided with sealing rubber to realize sealing.
By adopting the solar energy application system for collecting, storing and releasing solar energy, according to the requirement of energy consumption of 10-15 kilowatts per square meter of energy consumption per year of a passive house, 50-degree hot water of 0.5-1 cubic meter is required for supplying heat per square meter of residential house (without considering the heat loss of the hot water and the heat collection amount in winter), the underground heat collection efficiency is higher and higher along with the extension of the service time, and the heat collection effect in winter is better and better along with the improvement of the environment and the extension of the sunshine time by adopting a reasonable solar heat collection structure.
Based on the basic floor area of the building, the heat (the water temperature is more than 50 ℃) stored in the water storage tank with the depth of 5 meters can approximately meet the heating energy consumption requirement of the building with the height of 20-25 meters and the heat preservation condition of a passive house in winter. Conservative estimation of heat collecting capacity of each square meter of solar heat collecting structure in spring, summer and autumn can heat 5-10 tons of water to more than 50 degrees (common solar water heaters can be proved). The technology has wide popularization and application prospect, is once invested, is beneficial for a long time, reduces the electric energy consumption and has important significance for sustainable development.
The principle and the implementation mode of the invention are explained by applying specific examples, and the description of the above examples is only used for helping understanding the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.
Claims (7)
1. Solar energy application system of solar energy collection, heat-retaining and heat release, its characterized in that: comprises a heat collecting system, a heat storage system and a heat release system, wherein the heat storage system is arranged below a ground frozen soil layer,
The heat collecting system is used for supplying heat to the heat storage system, a heat insulation structure with a light receiving surface provided with transparent glass is arranged outside the heat collecting system,
the heat storage system is internally provided with a heat taking calandria connected with a heat release unit of the heat release system.
2. The solar energy application system for solar energy collection, heat storage and heat release according to claim 1, wherein: the heat storage system comprises a heat-preservation water tank, a heat-releasing exhaust pipe of the heat collection system is arranged below the heat-preservation water tank, and the heat-releasing exhaust pipe penetrates through the heat-preservation water tank to be connected with a heat collection unit of the heat collection system.
3. The solar energy application system for solar energy collection, heat storage and heat release according to claim 2, wherein: the heat-insulating water tank is buried in underground soil or is arranged in an underground structure below underground frozen soil.
4. The solar energy application system for solar energy collection, heat storage and heat release according to claim 1, wherein: the inner wall of the heat storage system is provided with a spongy or flocculent structure.
5. The solar energy application system for solar energy collection, heat storage and heat release according to any one of claims 1 to 4, wherein: an air pipeline is arranged above the heat storage system and is communicated into the room; and a heat taking exhaust pipe communicated with the air pipeline is arranged in the heat storage system and heats the air inside the heat taking exhaust pipe.
6. The solar energy application system for solar energy collection, heat storage and heat release according to any one of claims 1 to 4, wherein: and a ventilation channel is arranged on the outer side of the heat storage system, is communicated with the air pipeline and heats air in the ventilation channel.
7. The solar energy application system for solar energy collection, heat storage and heat release according to any one of claims 1 to 4, wherein: the heat collecting system is provided with a circulating pump, and the heat releasing system is provided with a circulating pump.
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| CN201920249670.5U CN209801827U (en) | 2019-02-28 | 2019-02-28 | solar energy application system for solar energy heat collection, heat storage and heat release |
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| CN201920249670.5U CN209801827U (en) | 2019-02-28 | 2019-02-28 | solar energy application system for solar energy heat collection, heat storage and heat release |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109751775A (en) * | 2019-02-28 | 2019-05-14 | 唐山际宇岩土工程有限公司 | Solar energy heating, heat accumulation and heat release solar energy application system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109751775A (en) * | 2019-02-28 | 2019-05-14 | 唐山际宇岩土工程有限公司 | Solar energy heating, heat accumulation and heat release solar energy application system |
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