CN211290592U

CN211290592U - Solar heat collector with uniform heating

Info

Publication number: CN211290592U
Application number: CN201922340495.3U
Authority: CN
Inventors: 徐洪涛
Original assignee: Shanghai Bosheng Energy Technology Co ltd
Current assignee: Liu Changbo
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-08-18
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a solar collector who is heated evenly belongs to solar collector technical field. Including support and heat collector body, the support sets up in heat collector body upper end, this internal heat preservation that is equipped with of heat collector, be equipped with the draw-in groove on the support, this draw-in groove is connected with lens, be connected through the rotation axis between draw-in groove and the lens, the back of lens is equipped with fixed plate and rotation axis connection, lens set up in the heat preservation upper end, this internal pipeline that still is equipped with of heat collector, be equipped with driving motor on the support, driving motor's drive shaft and rotation axis connection, the upper surface of lens is equipped with the light inductor, the light inductor electricity is connected with the controller, this controller. The light sensor is used for receiving the sunlight irradiation intensity and transmitting the signal to the controller, and the controller controls the driving motor to rotate according to the signal so as to enable the lens to be opposite to the direction with high light intensity, so that the solar heat collector cannot be heated unevenly due to different sunlight irradiation directions.

Description

Solar heat collector with uniform heating

Technical Field

The utility model belongs to the technical field of solar collector, be a solar collector who is heated evenly particularly.

Background

The efficient utilization of solar energy is one of effective ways to solve the problems of energy shortage and environmental pollution. At present, solar photovoltaic and photothermal utilization technologies are becoming mature. However, the subsequent development of the solar industry is restricted by the problems of low radiation density, instability, high cost and the like of solar energy, the light-gathering technology can enable the photovoltaic cell to output more electric quantity per unit area, the defects are effectively relieved, and the utilization rate of the solar energy in the area with weak illumination intensity is improved. The linear Fresnel lens is low in cost and easy to install, and can meet the actual requirements of small-sized family users.

The efficiency of a commercial monocrystalline silicon battery can reach 15% -18% under standard test working conditions, and most of the rest energy is converted into heat. However, due to the limitation of the silicon material, the electrical efficiency of the photovoltaic cell gradually decreases as the temperature of the photovoltaic cell increases, the temperature of the photovoltaic cell is increased more obviously by the light condensing device, the electrical efficiency is decreased rapidly, and meanwhile, the service life of the photovoltaic cell and the whole heat collecting device is shortened by the long-time high-intensity radiation. Adopt different cooling medium (like water or air) to cool off photovoltaic cell, produce low-grade heat again when can improving the generating efficiency, compare with the device of utilizing light heat and photovoltaic alone, saved installation cost and space, improved energy utilization, increase the operating life of whole device. And the flat plate type heat collector saves the production cost, is easy to be integrated with a building, and can meet the requirements of modern building development.

The absorber plate and the cooling runner in traditional photovoltaic light and heat integration solar collector adopt the tube sheet formula structure more, the mode that copper absorber plate and circular runner are connected promptly, and this kind of connection adopts welding process more, if the thickness of copper absorber plate is too thin, easily breaks through the deformation in the welding process, if thickness is too thick, has influenced thermal transmission again, and this kind of tube sheet formula structure requires highly to welding process, and the processing difficulty, influences beautifully. On the other hand, the actual contact area of the heat absorbing plate and the flow channel is close to line contact, the heat exchange area is too small, the total heat resistance is too large, the heat transfer is influenced, and the thermoelectric conversion efficiency of the whole system is reduced. Meanwhile, the heat absorbing plate and the circular flow channel are made of copper, so that the initial investment cost is high. Therefore, a new flow channel structure design is needed, the problem of the connection mode between the flow channel structure and the heat absorbing plate is solved, the heat exchange between the cooling fluid and the heat absorbing plate is enhanced, and the photoelectric and photothermal conversion efficiency of the whole device is further improved. The solar energy collector is convenient to process, low in cost and easy to manufacture and produce in a large scale, and the commercial development of the photovoltaic and photothermal integrated solar energy collector is promoted.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The utility model aims to solve the problem that the existing heat collector is heated unevenly under the irradiation of sunlight.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model relates to a solar heat collector which is heated uniformly, which comprises a bracket and a heat collector body, the support is arranged at the upper end of the heat collector body, a heat insulation layer is arranged in the heat collector body, a clamping groove is arranged on the support, the clamping groove is connected with a lens, the clamping groove is connected with the lens through a rotating shaft, a fixing plate is arranged on the back of the lens and connected with the rotating shaft, the lens is arranged at the upper end of the heat preservation layer, the heat collector body is also internally provided with a pipeline, the upper end of the pipeline is sequentially provided with a glass cover plate, an air interlayer, an EVA adhesive layer I, a photovoltaic cell and an EVA adhesive layer II from top to bottom, the bracket is provided with a driving motor, a driving shaft of the driving motor is connected with the rotating shaft, the upper surface of the lens is provided with a light sensor, the light sensor is electrically connected with a controller, and the controller is electrically connected with a switch of the driving motor.

Preferably, a transparent back plate is arranged at the lower end of the EVA adhesive layer II, a heat absorbing plate is arranged at the lower end of the transparent back plate, and the heat absorbing plate is arranged right above the pipeline.

Preferably, the cross-sectional shape of the conduit is rectangular, semicircular, triangular or trapezoidal.

Preferably, the heat collector body is further provided with a cold water inlet and a hot water outlet, and the cold water inlet and the hot water outlet are both communicated with the pipeline.

Preferably, the heat absorbing plate is made of copper and is connected with the collector body through threads.

Preferably, the pipeline is a parallel straight-through pipeline and comprises a plurality of parallel small straight-through pipelines, two ends of the plurality of parallel small straight-through pipelines are respectively connected with a same straight-through main pipeline with a larger diameter, and the straight-through main pipeline is respectively communicated with the cold water inlet and the hot water outlet.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

the utility model relates to a solar heat collector which is heated uniformly, which comprises a bracket and a heat collector body, the support is arranged at the upper end of the heat collector body, a heat insulation layer is arranged in the heat collector body, a clamping groove is arranged on the support, the clamping groove is connected with a lens, the clamping groove is connected with the lens through a rotating shaft, a fixing plate is arranged on the back of the lens and connected with the rotating shaft, the lens is arranged at the upper end of the heat preservation layer, the heat collector body is also internally provided with a pipeline, the upper end of the pipeline is sequentially provided with a glass cover plate, an air interlayer, an EVA adhesive layer I, a photovoltaic cell and an EVA adhesive layer II from top to bottom, the bracket is provided with a driving motor, a driving shaft of the driving motor is connected with the rotating shaft, the upper surface of the lens is provided with a light sensor, the light sensor is electrically connected with a controller, and the controller is electrically connected with a switch of the driving motor. The light sensor is used for receiving the sunlight irradiation intensity and transmitting the signal to the controller, and the controller controls the driving motor to rotate according to the signal so as to enable the lens to be opposite to the direction with high light intensity, so that the solar heat collector cannot be heated unevenly due to different sunlight irradiation directions.

Drawings

FIG. 1 is a schematic view of the overall structure of a solar heat collector of the present invention with uniform heating

Fig. 2 is a schematic structural view of a solar heat collector heated uniformly according to the present invention;

FIG. 3 is a schematic structural view of the heat collector body of the present invention;

fig. 4 is a first schematic structural diagram of the pipeline of the present invention;

fig. 5 is a schematic structural diagram of a pipeline according to the present invention.

The reference numerals in the schematic drawings illustrate:

1. a support; 2. a heat-insulating layer; 3. a lens; 4. a card slot; 5. a cold water inlet; 6. a hot water outlet; 7. a glass cover plate; 8. an air interlayer; 9. a first EVA adhesive layer; 10. a photovoltaic cell; 11. a second EVA adhesive layer; 12. A transparent back plate; 13. a heat absorbing plate; 14. a collector body; 15. a pipeline; 16. a rotating electric machine; 17. a light sensor.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example 1

Referring to the attached drawings 1-5, the solar collector with uniform heating in the embodiment comprises a support 1 and a collector body 14, wherein the support 1 is arranged at the upper end of the collector body 14, a heat insulation layer 2 is arranged in the collector body 14, a clamping groove 4 is arranged on the support 1, the clamping groove 4 is connected with a lens 3, the clamping groove 4 is connected with the lens 3 through a rotating shaft, a fixing plate is arranged on the back surface of the lens 3 and connected with the rotating shaft, the lens 3 is arranged at the upper end of the heat insulation layer 2, a pipeline 15 is further arranged in the collector body 14, a glass cover plate 7, an air interlayer 8, an EVA adhesive layer I9, a photovoltaic cell 10 and an EVA adhesive layer II 11 are sequentially arranged at the upper end of the pipeline 15 from top to bottom, a driving motor 16 is arranged on the support 1, a driving shaft of the driving motor 16 is connected with the rotating shaft, the light sensor 17 is electrically connected to a controller, and the controller is electrically connected to a switch of the driving motor 16. The light sensor 17 is used for receiving the sunlight irradiation intensity and transmitting a signal to the controller, and the controller controls the driving motor 16 to rotate according to the signal so as to enable the lens 3 to contrast the direction with high light intensity, so that the solar thermal collector cannot be heated unevenly due to different sunlight irradiation directions.

The lower end of the EVA adhesive layer II 11 is provided with a transparent back plate 12, the lower end of the transparent back plate 12 is provided with a heat absorbing plate 13, the heat absorbing plate 13 is arranged right above the pipeline 15, and the cross section of the pipeline 15 is rectangular, semicircular, triangular or trapezoidal. The heat collector body 14 is also provided with a cold water inlet 5 and a hot water outlet 6, and the cold water inlet 5 and the hot water outlet 6 are both communicated with the pipeline 15. The heat absorbing plate 13 is made of copper, and the heat absorbing plate 13 is connected with the heat collector body 14 through threads. The pipeline 15 is a parallel straight-through pipeline and comprises a plurality of parallel small straight-through pipelines, two ends of the plurality of parallel small straight-through pipelines are respectively connected with a same straight-through main pipeline with a larger diameter, and the straight-through main pipeline is respectively communicated with the cold water inlet 5 and the hot water outlet 6.

This embodiment heats absorber plate 13 on concentrating on heat collector body 14 with light through lens 3, heats the water in the pipeline 15 after absorber plate 13 heats, and glass apron 7 adopts the toughened glass material of high light transmissivity, glues sealing connection aluminium system framework with glass, and the effect prevents dust and steam infiltration. In order to prevent heat loss, an air interlayer 8 is left between the heat absorbing plate 13 and the photovoltaic module. For the photovoltaic cells 10 comprised in the photovoltaic module, monocrystalline silicon cells are used to be flooded in series. The photovoltaic component is bonded with the heat absorbing plate 13 below through the heat conducting silica gel or the gasket with high heat conductivity coefficient, and the heat conducting silica gel or the gasket needs to be integrally covered on the upper surface of the heat absorbing plate 13 so as to reduce air thermal resistance and ensure good heat conducting capacity. The copper heat absorption plate 13 is directly connected with the heat collector body 14 with the embedded runner, the peripheral edges of the two materials are tapped, and a connection mode of threaded connection is adopted; and for the middle contact part, the heat conducting silica gel or a gasket is used for bonding, so that the series flow and the leakage of cooling fluid among different channels are prevented while the heat transfer is ensured. The connection mode ensures the direct contact between the cooling medium and the heat absorbing plate, avoids the problems of complex processing, overlarge thermal resistance, high cost and the like caused by a welding connection process when a tube-plate structure is adopted, effectively improves the heat transfer effect, and optimizes the thermoelectric conversion efficiency of the whole device.

The above-mentioned embodiments only express a certain implementation manner of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, without departing ┅ from the concept of the present invention, several variations and modifications can be made, which are within the scope of the present invention; therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A solar heat collector heated uniformly is characterized in that: comprises a support (1) and a heat collector body (14), wherein the support (1) is arranged at the upper end of the heat collector body (14), a heat preservation layer (2) is arranged in the heat collector body (14), a clamping groove (4) is arranged on the support (1), the clamping groove (4) is connected with a lens (3), the clamping groove (4) is connected with the lens (3) through a rotating shaft, a fixing plate is arranged at the back of the lens (3) and connected with the rotating shaft, the lens (3) is arranged at the upper end of the heat preservation layer (2), a pipeline (15) is further arranged in the heat collector body (14), a glass cover plate (7), an air interlayer (8), an EVA adhesive layer I (9), a photovoltaic cell (10) and an EVA adhesive layer II (11) are sequentially arranged at the upper end of the pipeline (15) from top to bottom, a driving motor (16) is arranged on the support (1), and a driving shaft, the upper surface of the lens (3) is provided with a light sensor (17), the light sensor (17) is electrically connected with a controller, and the controller is electrically connected with a switch of the driving motor (16).

2. A thermally uniform solar collector as claimed in claim 1, wherein: the lower end of the EVA adhesive layer II (11) is provided with a transparent back plate (12), the lower end of the transparent back plate (12) is provided with a heat absorbing plate (13), and the heat absorbing plate (13) is arranged right above the pipeline (15).

3. A thermally uniform solar collector as claimed in claim 1, wherein: the cross section of the pipeline (15) is rectangular, semicircular, triangular or trapezoidal.

4. A thermally uniform solar collector as claimed in claim 1, wherein: the heat collector body (14) is further provided with a cold water inlet (5) and a hot water outlet (6), and the cold water inlet (5) and the hot water outlet (6) are communicated with the pipeline (15).

5. A solar collector heated uniformly according to claim 2 wherein: the heat absorbing plate (13) is made of copper, and the heat absorbing plate (13) is connected with the heat collector body (14) through threads.

6. A solar collector heated uniformly according to claim 4 wherein: the pipeline (15) is a parallel straight-through pipeline and comprises a plurality of parallel small straight-through pipelines, two ends of the plurality of parallel small straight-through pipelines are respectively connected with a same straight-through main pipeline with a larger diameter, and the straight-through main pipeline is respectively communicated with a cold water inlet (5) and a hot water outlet (6).