CN213237990U - Vertical flat-plate solar collector - Google Patents
Vertical flat-plate solar collector Download PDFInfo
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- CN213237990U CN213237990U CN202021436442.8U CN202021436442U CN213237990U CN 213237990 U CN213237990 U CN 213237990U CN 202021436442 U CN202021436442 U CN 202021436442U CN 213237990 U CN213237990 U CN 213237990U
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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
Abstract
The utility model belongs to the technical field of solar collector, concretely relates to vertical flat-plate solar collector. The heat collector comprises: a housing; the plurality of reflecting and condensing units are used for integrating solar energy and converting the solar energy into heat energy; the plurality of reflecting and condensing units are arranged in the shell side by side; the reflective light-condensing unit includes: the glass-metal vacuum heat collecting tube is used for absorbing sunlight and converting the sunlight into heat energy; the reflection light-gathering groove 4 is used for gathering sunlight onto the glass-metal vacuum heat collecting tube; the glass-metal vacuum heat collecting tube is arranged on the light converging center of the reflection light converging groove 4. The heat collector has the advantages of simple structure, no need of tracking, good light-gathering effect, no tube explosion, high reliability and the like, and is suitable for cold areas.
Description
Technical Field
The utility model belongs to the technical field of solar collector, concretely relates to vertical flat-plate solar collector.
Background
Along with the trend of global warming, the emission of greenhouse gases is more serious, the consumption of traditional fossil energy is larger and larger, the gap of energy is larger and larger, the enhancement of energy conservation and emission reduction becomes a very slow matter, and the method is also an important means for the challenges of global climate change, resource shortage and limited environmental capacity. Solar energy is the most abundant renewable energy in nature, and the degree and efficiency of development and utilization of the solar energy are of great significance for saving conventional energy, protecting natural environment, slowing down climate change and the like.
The solar heat collector is an important device in the field of solar heat utilization, can absorb solar energy radiation energy and convert the solar energy radiation energy into heat energy, heats a heat transfer medium in the solar heat collector, and stores and utilizes the heat energy. The solar heat collector has the characteristics of simple structure, low cost, convenience in maintenance, high reliability and long service life, and can provide a large amount of hot water and steam for life and production activities of people. The life quality of people is improved, energy is saved, and the environment is purified.
Traditional borosilicate vacuum glass tube heat collector can only absorb the single time sunlight of inner tube cross-section, and collecting efficiency and heat collection temperature are lower, need set up certain installation inclination according to local sun angle during the installation moreover, can only select to install platform positions such as roof, and area is great, because temperature is low during winter, appears the booster easily. In the conventional flat plate collector, because the heat collecting plate on the lighting surface is in direct contact with air, no vacuum heat preservation measure is provided, when the ambient temperature is lower, a large part of heat energy can be lost, and therefore the heat collecting efficiency and the heat collecting temperature are also lower. In addition, the groove type, disc type and linear Fresnel solar heat collectors can achieve high heat collection temperature and efficiency, but are only suitable for being applied to the field of large-area centralized heat supply, and the cost advantage is low in the field of single-family household heat supply. And a tracking control system is needed, the technology is complex, and the cost of investment for reliability and operation and maintenance is high. At present, many companies try to research and manufacture CPC heat collectors at home and abroad, and the existing CPC structure has a limited solar light receiving angle and is easy to cause light leakage to influence heat collecting efficiency.
Current situation to solar collector, the utility model provides a vertical flat-plate solar collector to remedy prior art's not enough.
Disclosure of Invention
In order to solve the problems, the utility model aims at providing a vertical flat-plate solar collector, the heat collector has simple structure, need not trail, spotlight is effectual, do not explode the pipe, advantages such as reliability height are applicable to cold areas.
The utility model adopts the following technical scheme:
a vertical flat-plate solar collector, the collector comprising:
a housing;
the plurality of reflecting and condensing units are used for integrating solar energy and converting the solar energy into heat energy;
the plurality of reflecting and condensing units are arranged in the shell side by side;
the reflective light-condensing unit includes:
the glass-metal vacuum heat collecting tube is used for absorbing sunlight and converting the sunlight into heat energy;
the reflecting light-gathering groove is used for gathering sunlight onto the glass-metal vacuum heat collecting tube;
the glass-metal vacuum heat collecting pipe is arranged on the light converging center of the reflection light converging groove.
Further, the housing includes: the back plate, the four frames and the ultra-white high turbine plate reinforce the glass cover plate; the four frames are enclosed into a rectangle, and the back plate and the ultra-white high turbine plate tempered glass cover plate are respectively arranged on two sides of the rectangle, so that the shell forms a closed space.
Furthermore, a plurality of exhaust holes are formed in one of the four frames.
Furthermore, a plurality of fixing and mounting holes are formed in the back plate and used for fixing the heat collector and the wall.
Further, the reflection condensing groove includes: two sections of paraboloids, two sections of inclined planes and a reflecting aluminum mirror surface;
the two sections of inclined planes are symmetrically arranged below the glass-metal vacuum heat collecting tube;
the two sections of paraboloids are arranged on two sides of the glass-metal vacuum heat collecting pipe and are connected with the corresponding inclined planes to form an integral curved surface structure;
the reflecting aluminum mirror surface structure is matched with the curved surface structure of the reflecting light-gathering groove and is installed in a close fit mode.
Furthermore, the solar receiving angle of the reflection light-gathering groove is 15-80 degrees, the maximum light-gathering ratio is higher than 5, the heat collection temperature is high, and the heat dissipation is small.
Furthermore, a plurality of the reflection light gathering grooves are arranged in parallel in the shell to form a lighting surface.
Further, the back plate material is metal, plastic or wood.
Further, the frame material is an aluminum alloy.
Further, the paraboloid and the inclined plane are made of foam, paper pulp or polyurethane foam materials and are formed by die casting through an existing die.
Furthermore, a U-shaped metal heat transfer pipe with a heat conduction fin structure is arranged in the glass-metal vacuum heat collection pipe and is used for absorbing the heat of sunlight; the metal heat transfer tubes in two adjacent glass-metal vacuum heat collecting tubes are connected in series.
Further, the heat collector further comprises:
at least two supporting flat plates for fixing and positioning the glass-metal vacuum heat collecting tube;
the supporting flat plates are arranged at the front end and the rear end of the glass-metal vacuum heat collecting pipe.
Further, the support flat plate is provided with a mounting hole.
Further, the heat collector further comprises: a thermal insulation material;
and the heat insulation material is filled in a space formed by the support flat plate and the frame.
Furthermore, the inner wall surface of the glass-metal vacuum heat collecting tube is provided with a heat absorbing coating for absorbing reflected sunlight.
Furthermore, a metal heat transfer pipe is arranged in the inner cavity of the glass-metal vacuum heat collection pipe.
Furthermore, a plurality of metal heat transfer pipes are connected in series, water is filled in the metal heat transfer pipes, and the metal heat transfer pipes after being connected in series are communicated with an external water tank through a water inlet connector and a water outlet connector.
Further, water in the metal heat transfer pipe is driven to circulate through an externally arranged pump.
Further, the heat collection principle of the heat collector is as follows:
the heat collector is arranged at a target position in a mode of being vertical to a horizontal plane, and one side of the strengthened glass cover plate with the ultra-white high turbine plate faces south; sunlight penetrates through the ultra-white high-turbine plate strengthened glass cover plate and directly irradiates the surface of the reflecting aluminum mirror surface, the incident sunlight is reflected to the glass-metal vacuum heat collecting tube through the reflecting action of the reflecting aluminum mirror surface, the heat absorption coating on the surface of the glass-metal vacuum heat collecting tube inner layer glass absorbs the heat of the reflected sunlight to generate medium-high temperature heat energy, and the heat energy is transferred to the metal heat transfer tube in the glass tube inner cavity through the heat radiation action; the water in the metal heat transfer pipe absorbs the heat; the heat is transferred out by the drive of an external pump and is stored in an external heat storage water tank.
Further, the target location includes a building wall, a roof, or a floor.
After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect:
(1) the utility model discloses during the use, will have the one side of super white high turbine plate tempered glass apron south to perpendicular to ground installation need not to install the adjustment at inclination according to local dimension, and the installation is simple, and is convenient, swift.
(2) An advanced design method is adopted, and an imaging type focusing paraboloid is combined with a non-imaging focusing involute surface, so that the design of a wide receiving angle is realized; and the optical trap is utilized to capture the leakage light between the glass-metal vacuum heat collecting tube and the reflecting surface again, thereby realizing high-efficiency energy collection. The designed solar receiving angle of the reflection light-gathering groove is 15-80 degrees, the maximum light-gathering ratio is higher than 5, the heat collection temperature is high, and the heat dissipation is small. Under the condition of completely sticking to a wall and vertically installing, the solar heat collector can meet the requirement of collecting solar energy in winter in the whole country, and can realize annual solar energy high-efficiency heat collection in northern high-latitude areas (latitude is more than N40 degrees).
(3) The comprehensive heat collection efficiency of the heat collector reaches more than 60 percent and is higher than that of the existing heat collector.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of a vertical flat-plate solar collector in an embodiment of the present invention.
Fig. 2 is a schematic view of the housing structure in the embodiment of the present invention.
Fig. 3 is a schematic view of an internal structure of a vertical flat-plate solar collector according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a reflection light-gathering unit in an embodiment of the present invention.
Description of reference numerals:
1-a frame; 2-glass-metal vacuum heat collecting tube; 3-ultra-white high turbine plate strengthened glass cover plate; 4-a reflective light-gathering groove; 41-paraboloid; 42-inclined plane; 5-reflective aluminum mirror surface; 6-a back plate; 7-air vent; 8-water outlet connector; 9-a support plate; 10-water inlet connector; 11-metal heat transfer tubes.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings of the embodiments and the specification. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in order to provide a better understanding of the present invention to the public, certain specific details are set forth in the following detailed description of the invention. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details.
Referring to fig. 1 and 4, in the present embodiment, there is provided a vertical flat-plate solar collector, the collector comprising:
a housing;
the plurality of reflecting and condensing units are used for integrating solar energy and converting the solar energy into heat energy;
the plurality of reflecting and condensing units are arranged in the shell side by side;
the reflective light-condensing unit includes:
the glass-metal vacuum heat collecting tube 2 is used for absorbing sunlight and converting the sunlight into heat energy;
the reflecting light-gathering groove 4 is used for gathering sunlight onto the glass-metal vacuum heat-collecting tube 2;
the glass-metal vacuum heat collecting tube 2 is arranged on the light converging center of the reflection light converging groove 4.
In this embodiment, the housing includes: the device comprises a back plate 6, four frames 1 and an ultra-white high turbine plate strengthened glass cover plate 3; the four frames 1 are enclosed into a rectangle, and the back plate 6 and the ultra-white high turbine plate tempered glass cover plate 3 are respectively arranged on two sides of the rectangle, so that the shell forms a closed space.
Referring to fig. 2, in the present embodiment, a plurality of exhaust holes 7 are formed on one of the four frames 1.
In this embodiment, the back plate 6 is provided with a plurality of fixing holes for fixing the heat collector to a wall.
Referring to fig. 4, in the present embodiment, the reflection condensing groove 4 includes: two sections of paraboloids 41, two sections of inclined planes 42 and a reflecting aluminum mirror surface 5;
the two sections of inclined planes 42 are symmetrically arranged below the glass-metal vacuum heat collecting tube 2;
the two sections of paraboloids 41 are arranged at two sides of the glass-metal vacuum heat collecting tube 2 and are connected with the corresponding inclined planes 42 to form an integral curved surface structure;
the structure of the reflecting aluminum mirror surface 5 is matched with the curved surface structure of the reflecting light-gathering groove 4, and the reflecting aluminum mirror surface is installed in a close fit mode.
In this embodiment, the solar receiving angle of the reflective light-gathering groove 4 is 15 ° to 80 °, the maximum light-gathering ratio is higher than 5, the heat collection temperature is high, and the heat dissipation is small.
In this embodiment, a plurality of the reflective light-gathering grooves 4 are arranged in parallel in the housing to form a lighting surface.
In this embodiment and other embodiments, the back plate 6 is made of metal, plastic or wood.
In this embodiment and other embodiments, the frame 1 is made of aluminum alloy.
In this embodiment and other embodiments, the material of the paraboloid 41 and the inclined plane 42 are all foam, pulp or polyurethane foam material, and are formed by die casting through an existing die.
In this embodiment and other embodiments, a U-shaped metal heat transfer tube 11 with a heat conduction fin structure is installed in the glass-metal evacuated collector tube 2 for absorbing heat of sunlight; the metal heat transfer tubes 11 in two adjacent glass-metal vacuum heat collection tubes 2 are connected in series.
In other embodiments, the heat collector further comprises:
at least two supporting flat plates 9 for fixing and positioning the glass-metal vacuum heat collecting tube 2;
the supporting flat plates 9 are arranged at the front end and the rear end of the glass-metal vacuum heat collecting tube 2.
In other embodiments, the support plate 9 is provided with mounting holes.
In other embodiments, the heat collector further comprises: a thermal insulation material;
the heat insulation material is filled in a space formed by the support flat plate 9 and the frame 1.
In this embodiment and other embodiments, the inner wall surface of the glass-metal evacuated collector tube 2 is provided with a heat absorption coating for absorbing reflected sunlight.
In this embodiment and other embodiments, a metal heat transfer pipe 11 is arranged in the inner cavity of the glass-metal vacuum heat collection pipe 2.
In this embodiment and other embodiments, a plurality of metal heat transfer pipes 11 are connected in series, water is filled in the metal heat transfer pipes 11, and the metal heat transfer pipes 11 after being connected in series are communicated with an external water tank through a water inlet connector 10 and a water outlet connector 8.
In this embodiment and other embodiments, the water in the metal heat transfer pipe 11 is driven to circulate by an externally provided pump.
In this embodiment and other embodiments, the heat collecting principle of the heat collector is as follows:
the heat collector is arranged at a target position in a mode of being vertical to a horizontal plane, and one side of the strengthened glass cover plate 3 with the ultra-white high turbine plate faces south; sunlight penetrates through the ultra-white high-turbine-plate strengthened glass cover plate 3 and directly irradiates the surface of the reflecting aluminum mirror surface 5, the incident sunlight is reflected to the glass-metal vacuum heat collecting tube 2 through the reflecting action of the reflecting aluminum mirror surface 5, the heat absorption coating on the surface of the inner layer glass of the glass-metal vacuum heat collecting tube 2 absorbs the heat of the reflected sunlight to generate medium-high temperature heat energy, and then the heat energy is transferred to the metal heat transfer tube 11 in the inner cavity of the glass tube through the action of thermal radiation; the water in the metal heat transfer pipe 11 absorbs heat; the heat is transferred out by the drive of an external pump and is stored in an external heat storage water tank.
The heat collector adopting the embodiment absorbs sunlight, the comprehensive heat collection efficiency reaches more than 60 percent, and is higher than that of the existing heat collector.
Claims (10)
1. A vertical flat-plate solar collector, characterized in that it comprises:
a housing;
the plurality of reflecting and condensing units are used for integrating solar energy and converting the solar energy into heat energy;
the plurality of reflecting and condensing units are arranged in the shell side by side;
the reflective light-condensing unit includes:
the glass-metal vacuum heat collecting tube is used for absorbing sunlight and converting the sunlight into heat energy;
the reflecting light-gathering groove is used for gathering sunlight onto the glass-metal vacuum heat collecting tube;
the glass-metal vacuum heat collecting pipe is arranged on the light converging center of the reflection light converging groove.
2. A vertical flat-plate solar collector according to claim 1, wherein the housing comprises: the back plate, the four frames and the ultra-white high turbine plate reinforce the glass cover plate; the four frames are enclosed into a rectangle, and the back plate and the ultra-white high turbine plate tempered glass cover plate are respectively arranged on two sides of the rectangle, so that the shell forms a closed space.
3. The vertical flat-plate solar collector according to claim 1, wherein the reflective light-gathering groove comprises: two sections of paraboloids (41), two sections of inclined planes and a reflective aluminum mirror surface;
the two sections of inclined planes are symmetrically arranged below the glass-metal vacuum heat collecting tube;
the two sections of paraboloids (41) are arranged on two sides of the glass-metal vacuum heat collecting pipe and are connected with the corresponding inclined planes to form an integral curved surface structure;
the reflecting aluminum mirror surface structure is matched with the curved surface structure.
4. A vertical flat-plate solar collector according to any one of claims 1 or 3, wherein the solar acceptance angle of the reflective concentrating trough is 15 ° to 80 °.
5. The vertical flat-plate solar collector according to claim 1, wherein a U-shaped metal heat transfer tube with a heat conduction fin structure is arranged in the glass-metal evacuated collector tube.
6. The vertical flat-plate solar collector according to claim 1, wherein the collector further comprises:
at least two supporting flat plates for fixing and positioning the glass-metal vacuum heat collecting tube;
the supporting flat plates are arranged at the front end and the rear end of the glass-metal vacuum heat collecting pipe.
7. The vertical flat-plate solar collector according to claim 6, wherein the collector further comprises: a thermal insulation material;
and the heat insulation material is filled in a space formed by the support flat plate and the frame.
8. The vertical flat-plate solar collector according to claim 1, wherein the inner wall surface of the glass-metal evacuated collector tube is provided with a heat absorbing coating for absorbing reflected sunlight.
9. The vertical flat-plate solar collector according to claim 1, wherein a metal heat transfer pipe is arranged in the inner cavity of the glass-metal vacuum heat collecting pipe.
10. The vertical flat-plate solar collector according to claim 2, wherein the back plate is provided with a plurality of fixing holes for fixing the collector to a wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021436442.8U CN213237990U (en) | 2020-07-20 | 2020-07-20 | Vertical flat-plate solar collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021436442.8U CN213237990U (en) | 2020-07-20 | 2020-07-20 | Vertical flat-plate solar collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213237990U true CN213237990U (en) | 2021-05-18 |
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ID=75889536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021436442.8U Active CN213237990U (en) | 2020-07-20 | 2020-07-20 | Vertical flat-plate solar collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213237990U (en) |
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2020
- 2020-07-20 CN CN202021436442.8U patent/CN213237990U/en active Active
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