CN111473308A - Photovoltaic power generation heat storage system with steam heat exchange device - Google Patents
Photovoltaic power generation heat storage system with steam heat exchange device Download PDFInfo
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- CN111473308A CN111473308A CN202010458023.2A CN202010458023A CN111473308A CN 111473308 A CN111473308 A CN 111473308A CN 202010458023 A CN202010458023 A CN 202010458023A CN 111473308 A CN111473308 A CN 111473308A
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- steam
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/006—Methods of steam generation characterised by form of heating method using solar heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/028—Steam generation using heat accumulators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/36—Arrangements for sheathing or casing boilers
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention provides a photovoltaic power generation heat storage system with a steam heat exchange device, and relates to the technical field of clean energy. The system comprises a photovoltaic cell assembly, a heat storage assembly, a steam production assembly and a regulating assembly; the photovoltaic cell assembly is electrically connected with the heat storage assembly so as to convert electric energy into heat energy; the steam production assembly is arranged at the output end of the heat storage assembly so as to produce steam by utilizing the heat energy output by the heat storage assembly; the adjusting assembly is used for adjusting the temperature and the pressure of the steam output by the steam generating assembly. The invention solves the technical problem of unstable output steam in the prior art.
Description
Technical Field
The invention relates to the technical field of clean energy, in particular to a photovoltaic power generation heat storage system with a steam heat exchange device.
Background
In recent years, a large amount of traditional energy is consumed, reserves are exhausted, environmental problems caused by burning traditional energy are serious, development of new energy is urgently promoted under the policy of energy conservation and emission reduction, in renewable energy, solar energy is widely applied by the characteristics of huge reserves, low development cost, environmental protection, low carbon and the like, and becomes energy with the most scale and development potential, and photovoltaic power generation is an important form of solar energy utilization. If the photovoltaic power generation can be fully utilized to produce steam, the cost for preparing the steam can be reduced, and the ecological environment is improved.
The existing heating system utilizing photovoltaic power generation mainly utilizes a solar heat collector and a photovoltaic power generation system to convert solar energy into electric energy, and then steam is prepared through a complex steam preparation structure, and the output steam is not stable.
Disclosure of Invention
The invention aims to provide a photovoltaic power generation heat storage system with a steam heat exchange device, which can stably output steam.
The technical scheme of the invention is realized as follows:
a photovoltaic power generation heat storage system with a steam heat exchange device comprises a photovoltaic cell assembly, a heat storage assembly, a steam production assembly and an adjusting assembly;
the photovoltaic cell assembly is electrically connected with the heat storage assembly so as to convert electric energy into heat energy;
the steam production assembly is arranged at the output end of the heat storage assembly so as to produce steam by utilizing the heat energy output by the heat storage assembly;
the regulating assembly is used for regulating the temperature and the pressure of the steam output by the steam generating assembly.
In a preferred technical scheme of the invention, in the photovoltaic power generation heat storage system with the steam heat exchange device, the heat storage assembly comprises a heat storage body and a direct current heating wire;
the direct current heating wire is arranged in the heat storage body and electrically connected with the photovoltaic cell assembly.
In a preferred technical scheme of the invention, in the photovoltaic power generation heat storage system with the steam heat exchange device, the heat storage body is formed by stacking alloy solid materials;
a plurality of hot air channels are arranged in the heat storage body at intervals.
In a preferred technical scheme of the invention, in the photovoltaic power generation heat storage system with the steam heat exchange device, the direct current heating wire is arranged on the inner wall of the hot air channel.
In a preferred technical scheme of the invention, the photovoltaic power generation heat storage system with the steam heat exchange device comprises a steam production assembly, a steam drum and a water storage tank, wherein the steam production assembly comprises the heat exchange device, the steam drum and the water storage tank;
the heat exchange device is arranged right opposite to the output end of the heat storage assembly, and the input end and the output end of the heat exchange device are both communicated with the steam drum through communicating pipes;
the steam drum is communicated with the water storage tank through a water replenishing pipe.
In a preferred technical scheme of the invention, the photovoltaic power generation heat storage system with the steam heat exchange device comprises a steam generation assembly and a steam distribution cylinder, wherein the steam generation assembly comprises a steam distribution cylinder;
the steam sub-cylinder is communicated with the steam drum;
the steam cylinder is provided with a plurality of steam output pipes, and the steam output pipes are provided with steam flow regulating valves.
In a preferred technical scheme of the invention, the heat exchange device of the photovoltaic power generation heat storage system with the steam heat exchange device is a spiral metal fin tube type heat exchanger.
In a preferred technical scheme of the invention, in the photovoltaic power generation heat storage system with the steam heat exchange device, the adjusting component comprises a variable frequency fan;
the variable frequency fan is arranged right opposite to the air inlet of the hot air channel.
In a preferred technical scheme of the invention, in the photovoltaic power generation heat storage system with the steam heat exchange device, a hot air return channel is arranged between the heat exchange device and the adjusting assembly;
the hot air return passage is used for conveying hot air at the output end of the heat storage assembly to the input end of the heat storage assembly.
In a preferred technical scheme of the invention, the photovoltaic power generation heat storage system with the steam heat exchange device further comprises a heat preservation outer cover;
the heat storage assembly, the heat exchange device and the adjusting assembly are arranged inside the heat-preservation outer cover.
The invention has the beneficial effects that: the photovoltaic power generation heat storage system with the steam heat exchange device comprises a photovoltaic cell assembly, a heat storage assembly, a steam production assembly and an adjusting assembly; the photovoltaic cell assembly is electrically connected with the heat storage assembly to perform electric/thermal conversion; the steam production assembly is arranged at the output end of the heat storage assembly so as to produce steam by utilizing the heat energy output by the heat storage assembly; the adjusting assembly is used for adjusting the temperature and the pressure of the steam output by the steam generating assembly. The direct current converted by the photovoltaic cell assembly is subjected to electricity/heat conversion through the heat storage assembly and stores heat energy, the adjusting assembly can drive air heat energy generated by the heat storage assembly to be transmitted to the steam production assembly, and the temperature and the pressure of steam output by the steam production assembly are adjusted, so that high-quality and stable steam output is realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a photovoltaic power generation heat storage system with a steam heat exchange device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a photovoltaic power generation heat storage system with a steam heat exchange device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a third photovoltaic power generation heat storage system with a steam heat exchange device according to an embodiment of the present invention.
In the figure:
100-a photovoltaic cell assembly; 101-a direct current conductor; 200-a heat storage assembly; 201-heat storage body; 202-direct current heating wire; 203-hot air channel; 300-a steam production assembly; 301-heat exchange means; 302-a steam drum; 303-a water storage tank; 304-a water replenishing water pipe; 305-communicating tube; 306-steam cylinder division; 307-steam flow regulating valve; 308-a water replenishing pump; 400-a regulating component; 401-variable frequency fan; 500-hot air return; 600-heat preservation outer covers; 700-equipment base; 800-steam user; 900-electric user.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
First embodiment
Referring to fig. 1, the present embodiment provides a photovoltaic power generation heat storage system with a steam heat exchange device, which includes a photovoltaic cell assembly 100, a heat storage assembly 200, a steam production assembly 300, and a regulation assembly 400;
the photovoltaic cell assembly 100 is electrically connected with the heat storage assembly 200 to perform electric/thermal conversion;
the steam generating assembly 300 is arranged at the output end of the heat storage assembly 200 to generate steam by using the heat energy output by the heat storage assembly 200;
the regulating assembly 400 is used to regulate the temperature and pressure of the steam output by the steam generating assembly 300.
In the photovoltaic power generation module provided in this embodiment, the photovoltaic cell module 100 is used for converting solar energy into electric energy; the direct current generated by the photovoltaic cell assembly 100 is converted into electricity and heat through the heat storage assembly 200, and stores heat energy, the heat storage assembly 200 can store air heat energy and output air heat energy, and the output air heat energy is utilized by the steam production assembly 300 to produce steam. The adjusting assembly 400 can drive the air heat energy generated by the heat storage assembly 200 to be transmitted to the steam production assembly 300, and adjust the temperature and pressure of the steam output by the steam production assembly 300, so that high-quality and smooth output of the steam is realized.
In the above technical solution, further, the heat storage assembly 200 includes a heat storage body 201 and a direct current heating wire 202;
the dc heating wire 202 is disposed inside the heat storage body 201 and electrically connected to the photovoltaic cell module 100.
The dc heating wire 202 is a heating element of the heat storage body 201, and is electrically connected to the dc heating wire 202 through the dc wire 101. The direct current power supply of the direct current heating wire 202 is from the photovoltaic cell assembly 100, and compared with the existing technology of converting direct current into alternating current and then heating, the direct current heating technology is low in investment cost and failure rate.
In the above technical solution, further, the heat storage body 201 is formed by stacking alloy solid materials;
a plurality of hot air channels 203 are arranged in the heat storage body 201 at intervals.
In this embodiment, the heat storage body 201 is formed by stacking alloy solid materials, a plurality of hot air channels 203 are arranged in an array manner inside the heat storage body, and the steam production assembly 300 is arranged at a position close to one end portion (i.e., the output end of the heat storage assembly 200) of the hot air channels 203, so as to fully utilize the heat energy output by the heat storage assembly 200; the regulating member 400 is disposed at a position near the other end of the hot wind path 203, so that the amount of heat discharged from the heat storage member 200 can be controlled according to the temperature and pressure of the steam output from the steam generating member 300, thereby regulating the temperature and pressure of the steam output from the steam generating member 300. The hot air channel 203 is used as a transmission channel of air heat energy, and the transmission efficiency of the air heat energy can be improved.
In the above technical solution, further, the direct current heating wire 202 is disposed on an inner wall of the hot air channel 203.
The direct current heating wire 202 can be arranged between two adjacent hot air channels 203 and also can be arranged on the inner wall of each hot air channel 203, and in the embodiment, the direct current heating wire 202 is arranged on the inner wall of each hot air channel 203, so that heat energy can be rapidly transferred, and the conversion efficiency of the heat energy is improved.
In the above technical solution, further, the steam production assembly 300 includes a heat exchange device 301, a steam drum 302 and a water storage tank 303;
the heat exchange device 301 is arranged over against the output end of the heat storage assembly 200, and the input end and the output end of the heat exchange device 301 are both communicated with the steam drum 302 through a communicating pipe 305;
the steam drum 302 is communicated with the water storage tank 303 through a water replenishing pipe 304.
The steam drum 302 is arranged in the upper space of the heat exchange device 301, the bottom end of the heat exchange device 301 is an input end, and the top end of the heat exchange device 301 is an output end. The input end and the output end of the steam drum 302 are both communicated with the steam drum 302 through a communicating pipe 305; the water storage tank 303 is communicated with the steam drum 302 through a water replenishing water pipe 304, and a water replenishing pump 308 is arranged on the water replenishing water pipe 304 so as to replenish water to the steam drum 302 as required.
In the above technical solution, further, the steam production assembly 300 further includes a steam cylinder 306;
the steam cylinder 306 is in communication with the steam drum 302;
the steam cylinder 306 is provided with a plurality of steam output pipes, and the steam output pipes are provided with steam flow regulating valves 307.
The steam is distributed through the steam distribution cylinder 306 and the steam output pipes, so that the steam drums 302 are prevented from being connected out of all the pipelines, and the arrangement cost of the pipelines is reduced; the steam flow regulating valve 307 is arranged on the steam output pipe, so that the steam user 800 can conveniently take the steam according to the requirement.
In the above technical solution, further, the heat exchanging device 301 is a spiral metal fin tube heat exchanger.
The spiral metal fin tubular heat exchanger has large heat exchange area and good heat exchange effect.
In the above technical solution, further, the adjusting assembly 400 includes a variable frequency fan 401;
the variable frequency fan 401 is arranged right opposite to an air inlet of the hot air channel 203.
In this embodiment, the variable frequency fan 401 is disposed toward the air inlet of the hot air channel 203, and the flow of the air heat energy is increased or decreased by the function of automatically adjusting the operating frequency of the variable frequency fan 401, so as to control the amount of the air heat energy released by the heat storage assembly 200, and to realize stable output of the air heat energy. The adjusting assembly 400 of this embodiment also includes temperature sensor and pressure sensor, and temperature sensor and pressure sensor set up in steam drum 302 to be connected with frequency conversion fan 401 electricity, temperature sensor and pressure sensor can gather the temperature value and the pressure value that produce steam in the steam drum 302, and frequency conversion fan 401 is according to the temperature value and the pressure value automatically regulated operating frequency who gathers.
In the above technical solution, further, a hot air return channel 500 is arranged between the heat exchange device 301 and the adjusting assembly 400;
the hot air return passage 500 is used for conveying hot air at the output end of the heat storage assembly 200 to the input end of the heat storage assembly 200.
For make full use of air heat energy, this embodiment sets up hot-blast return passage 500 between heat transfer device 301 and adjusting part 400, the input and the heat transfer device 301 place space intercommunication of hot-blast return passage 500, the output and the adjusting part 400 place space intercommunication of hot-blast return passage 500, heat transfer device 301 does not fully utilize air heat energy enter into the heat-retaining subassembly 200 through hot-blast return passage 500 and keep away from one side of heat transfer device 301, under adjusting device's blowing effect, export behind hot-blast passageway 203, by heat transfer device 301 reuse.
In the above technical solution, further, the photovoltaic power generation heat storage system with the steam heat exchange device further includes a heat preservation cover 600;
the heat storage assembly 200, the heat exchange device 301 and the adjusting assembly 400 are arranged inside the heat-insulating outer cover 600.
In this embodiment, heat preservation dustcoat 600 sets up on equipment foundation 700, and heat-retaining component 200, heat transfer device 301 and adjusting part 400 all set up the inside at heat preservation dustcoat 600, and heat preservation dustcoat 600 can prevent effectively that inside air heat energy from taking place the loss.
The working principle of the photovoltaic power generation heat storage system with the steam heat exchange device is as follows: firstly, a water replenishing pump 308 is started to convey softened water in a water storage tank 303 into a steam drum 302 through a water replenishing water pipe 304, so that the water level in the steam drum 302 reaches the water level of saturated steam, direct current transmitted from a photovoltaic cell assembly 100 is connected, an alloy solid material with a nanometer material heat-insulating outer cover 600 is piled up to form a direct current heating wire 202 in a hot air channel 203 to generate heat, the alloy solid material has the capacity of outputting 200 ℃ saturated steam of a user when the temperature is increased to be within the range of 300-500 ℃, a variable frequency fan 401 is started to convey air heat energy in the hot air channel 203 to the surface of a heat exchange device 301 under positive pressure, the air heat energy exchanges heat with water in the heat exchange device 301, heat circulation between the heat exchange device 301 and the steam drum 302 is kept under the action of water gravity pressure difference, and the air heat energy flow is increased through the function of automatically adjusting the operation frequency of the variable frequency fan 401, the heat storage body 201 made of the alloy solid material releases more air heat energy, and finally the photovoltaic power generation heat storage system with the steam heat exchange device 301 outputs stable steam.
Second embodiment
Referring to fig. 2, the present embodiment provides a photovoltaic power generation and heat storage system with a steam heat exchange device, which is a further improvement of the photovoltaic power generation and heat storage system with a steam heat exchange device provided in the first embodiment, and therefore the technical solution described in the first embodiment also belongs to the present embodiment, and is not described herein again.
Specifically, the hot air return duct 500 of the present embodiment is led out to the outside of the heat insulating cover 600, and can reuse the heat energy of the air that is not fully used by the heat exchanger 301.
Third embodiment
Referring to fig. 3, the present embodiment provides a photovoltaic power generation and heat storage system with a steam heat exchange device, which is a further improvement of the photovoltaic power generation and heat storage system with a steam heat exchange device provided in the first embodiment, and therefore the technical solution described in the first embodiment also belongs to the present embodiment, and is not described herein again.
Specifically, the photovoltaic cell assembly 100 is also connected to the electrical consumer 900, and when the steam consumer 800 does not use steam, the photovoltaic cell assembly 100 can also provide electrical energy for the electrical consumer 900.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A photovoltaic power generation heat storage system with a steam heat exchange device is characterized by comprising a photovoltaic cell assembly, a heat storage assembly, a steam production assembly and an adjusting assembly;
the photovoltaic cell assembly is electrically connected with the heat storage assembly so as to convert electric energy into heat energy;
the steam production assembly is arranged at the output end of the heat storage assembly so as to produce steam by utilizing the heat energy output by the heat storage assembly;
the regulating assembly is used for regulating the temperature and the pressure of the steam output by the steam generating assembly.
2. The photovoltaic power generation and heat storage system with the steam heat exchange device according to claim 1, wherein the heat storage assembly comprises a heat storage body and a direct current heating wire;
the direct current heating wire is arranged in the heat storage body and electrically connected with the photovoltaic cell assembly.
3. The photovoltaic power generation and heat storage system with the steam heat exchange device according to claim 2, wherein the heat storage body is formed by stacking alloy solid materials;
a plurality of hot air channels are arranged in the heat storage body at intervals.
4. The photovoltaic power generation and heat storage system with the steam heat exchange device as claimed in claim 3, wherein the direct-current heating wires are arranged on the inner wall of the hot air channel.
5. The photovoltaic power generation and thermal storage system with a steam heat exchange device of claim 1, wherein the steam production assembly comprises a heat exchange device, a steam drum and a water storage tank;
the heat exchange device is arranged right opposite to the output end of the heat storage assembly, and the input end and the output end of the heat exchange device are both communicated with the steam drum through communicating pipes;
the steam drum is communicated with the water storage tank through a water replenishing pipe.
6. The photovoltaic power generation and thermal storage system with the steam heat exchange device according to claim 5, wherein the steam production assembly further comprises a steam header;
the steam sub-cylinder is communicated with the steam drum;
the steam cylinder is provided with a plurality of steam output pipes, and the steam output pipes are provided with steam flow regulating valves.
7. The photovoltaic power generation and thermal storage system with the steam heat exchange device of claim 5, wherein the heat exchange device is a spiral metal fin tube heat exchanger.
8. The photovoltaic power generation and thermal storage system with the steam heat exchange device of claim 3, wherein the regulating component comprises a variable frequency fan;
the variable frequency fan is arranged right opposite to the air inlet of the hot air channel.
9. The photovoltaic power generation and heat storage system with the steam heat exchange device as claimed in claim 5, wherein a hot air return channel is arranged between the heat exchange device and the adjusting component;
the hot air return passage is used for conveying hot air at the output end of the heat storage assembly to the input end of the heat storage assembly.
10. The photovoltaic power generation and heat storage system with the steam heat exchange device as claimed in claim 5, further comprising a heat preservation cover;
the heat storage assembly, the heat exchange device and the adjusting assembly are arranged inside the heat-preservation outer cover.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010458023.2A CN111473308A (en) | 2020-05-26 | 2020-05-26 | Photovoltaic power generation heat storage system with steam heat exchange device |
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| CN202010458023.2A CN111473308A (en) | 2020-05-26 | 2020-05-26 | Photovoltaic power generation heat storage system with steam heat exchange device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911897A (en) * | 2020-09-01 | 2020-11-10 | 刘新 | Heat storage type steam system |
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2020
- 2020-05-26 CN CN202010458023.2A patent/CN111473308A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911897A (en) * | 2020-09-01 | 2020-11-10 | 刘新 | Heat storage type steam system |
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