CN210405220U

CN210405220U - Solar cogeneration device

Info

Publication number: CN210405220U
Application number: CN201921640915.3U
Authority: CN
Inventors: 姚振华; 梁韬; 吴栓信
Original assignee: Beijing Puyang High Tech Co Ltd
Current assignee: Beijing Puyang High Tech Co Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-04-24
Anticipated expiration: 2029-09-29

Abstract

The utility model provides a solar thermal energy electricity cogeneration device, including solar power unit and air source heat pump unit, solar power unit has the solar array and is used for installing the mounting platform of solar array, solar array has the solar cell panel of a plurality of electricity connections, form air heat dissipation channel between one side in a poor light of mounting platform and solar array, air heat dissipation channel has air intake and air outlet, air source heat pump unit has the evaporation heat exchanger, evaporation heat exchanger and air outlet through connection to make the hot-air among the air heat dissipation channel can get into evaporation heat exchanger department. The utility model discloses a solar thermal energy electricity cogeneration device can in time dispel the heat that solar array produced, promotes solar electric power unit's electric conversion efficiency, the life of extension panel, utilizes the heat that solar electric power unit produced to improve air source heat pump unit's heating efficiency ratio simultaneously, and the device is energy-conserving high-efficient.

Description

Solar cogeneration device

Technical Field

The utility model belongs to the technical field of solar energy comprehensive utilization, concretely relates to solar cogeneration device.

Background

The solar photovoltaic power generation technology is a technology for converting sunlight into electric energy by using the photovoltaic effect of a semiconductor device. The smallest photovoltaic power generation unit is called a solar cell panel, and a solar cell module is formed by series-parallel connection, structural packaging and electrical connection. The power generation efficiency of the solar panel and the working temperature thereof show a negative correlation characteristic, namely, the efficiency is lower as the temperature is higher. The solar cell panel can generate heat when being irradiated by sunlight and generating electricity, so that the working temperature of the solar cell panel is increased, and the photoelectric conversion efficiency (generating efficiency) of the solar cell panel is reduced. Especially when solar module installs on various steel structure roof or other comparatively confined spaces, the circulation of back air is not smooth for solar array's temperature is higher, if can't in time dispel solar array's heat fast, will influence solar cell electricity conversion's efficiency, also can shorten solar cell's life-span. The air source heat pump technology is a heat pump technology using air as a heat source, is commonly used for producing domestic hot water and heating in winter, and is used for replacing traditional and fossil energy and electric heaters, the heating efficiency ratio COP (Coefficient of performance, the ratio of heat output of a heat pump to electric energy consumption) of the air source heat pump is related to the ambient temperature and has positive correlation characteristics, and generally speaking, the higher the ambient temperature is, the higher the COP is; the lower the environmental temperature is, the lower the COP is, and in northern air temperature of about-15 ℃, the COP is generally only about 2, even lower, and when the environmental temperature is lower, the COP of the air source heat pump is close to 1, even the normal work is difficult.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model is to provide a solar thermal energy electricity cogeneration device can in time dispel the heat that solar array produced, promotes solar electric unit's electric conversion efficiency, the life of extension panel, utilizes the heat that solar electric unit produced to improve air source heat pump unit's heating efficiency ratio simultaneously, and the device is energy-conserving high-efficient.

In order to solve the problem, the utility model provides a solar thermal power cogeneration device, including solar power unit and air source heat pump unit, solar power unit has solar array and is used for the installation the mounting platform of solar array, solar array has the solar cell panel of a plurality of electricity connections, mounting platform with form the air heat dissipation passageway between one side in a poor light of solar array, the air heat dissipation passageway has air intake and air outlet, air source heat pump unit has the evaporation heat exchanger, the evaporation heat exchanger with the air outlet through connection, so that hot-air in the air heat dissipation passageway can get into evaporation heat exchanger department.

Preferably, an airflow driving part is further arranged in the air heat dissipation channel to ensure that air can flow into the air heat dissipation channel from the air inlet and flow out from the air outlet.

Preferably, the mounting platform comprises a bottom plate and vertical walls, the bottom plate and the vertical walls are parallel and oppositely arranged with the solar array, the vertical walls are positioned on two sides of the bottom plate, a mounting cavity with an opening on one side is formed by the bottom plate and the vertical walls, and the solar array is mounted at the opening in a covering manner.

Preferably, the mounting platform further comprises a plurality of support frames arranged in parallel, and the plurality of support frames are arranged in the mounting cavity at intervals and divide the air heat dissipation channel into a plurality of sub-flow channels.

Preferably, the air outlets of the sub-flow channels are collected to a hot air collecting channel, and the airflow driving component is located in the hot air collecting channel or at the air outlet of the air source heat pump unit.

Preferably, the solar cogeneration device further comprises a monitoring part, wherein the monitoring part comprises a plurality of sensors, and the sensors are arranged on the side wall of the mounting platform in the air heat dissipation channel and are in communication connection with the monitoring alarm module.

Preferably, the air heat dissipation channel has a plurality of air heat dissipation channels, each of the air heat dissipation channels has an air outlet that is collected to a hot air collecting pipe, and the airflow driving component is located in the hot air collecting pipe or at the air outlet of the air source heat pump unit.

Preferably, the air source heat pump unit is an air source heat pump unit.

Preferably, the solar array has a plurality of electrically connected solar panels and at least one piece of tempered glass.

The utility model provides a pair of solar module, hot-air in the air heat dissipation passageway on the one hand can be right the solar array cools off, and on the other hand can but the hot-air that is heaied up leads to thereby evaporation heat exchanger department makes air source heat pump unit's ambient temperature obtains promoting, so can in time dispel the heat that the solar array produced, promotes solar electric generating unit's electric conversion efficiency, prolongs the life of panel, utilizes the heat that solar electric generating unit produced to improve air source heat pump unit's heating efficiency ratio simultaneously, and the device is energy-conserving high-efficient.

Drawings

Fig. 1 is a schematic structural diagram of a solar cogeneration device according to an embodiment of the present invention;

FIG. 2 is a schematic flow diagram of the heated air of FIG. 1;

fig. 3 is a schematic view of the internal structure of the solar cogeneration apparatus in fig. 1 (the solar array is omitted);

FIG. 4 is a schematic (one way) cross-sectional view of FIG. 1 taken along the direction of hot air flow;

FIG. 5 is a schematic cross-sectional view taken along the direction of flow of the heated air of FIG. 1 (in an alternative manner);

fig. 6 is a schematic structural view of a solar cogeneration device according to another embodiment of the present invention shown in fig. 1.

The reference numerals are represented as:

1. a solar array; 11. a solar panel; 12. tempering the glass; 2. an air heat dissipation channel; 21. an air inlet; 22. an air outlet; 23. a hot air collection duct; 24. a sub-flow channel; 31. a base plate; 32. erecting a wall; 33. a support frame; 34. supporting legs; 35. a beam purlin structure; 351. a beam; 352. a purlin; 51. a sensor; 52. a monitoring alarm module; 6. a power conversion device; 7. an air source heat pump unit.

Detailed Description

Referring to fig. 1 to 5 in combination, according to an embodiment of the present invention, a solar cogeneration device is provided, which includes a solar power generation unit and an air source heat pump unit, the solar power generation unit has a solar array 1 and a mounting platform for mounting the solar array 1, the solar array 1 has a plurality of solar panels 11 electrically connected to each other, an air heat dissipation channel 2 is formed between the mounting platform and a backlight side of the solar array 1, the air heat dissipation channel 2 has an air inlet 21 and an air outlet 22, the air source heat pump unit has an evaporation heat exchanger, the evaporation heat exchanger is connected to the air outlet 22 in a penetrating manner, so that hot air in the air heat dissipation channel 2 can enter the evaporation heat exchanger, the air source heat pump unit can adopt a conventional air source heat pump unit 7, preferably, the housing in which the evaporative heat exchanger is located should be modified accordingly to receive the hot air in the air heat dissipation channel 2. In the technical scheme, hot air in the air heat dissipation channel 2 can take away heat of the solar array 1 on one hand, and heated air can be guided to the evaporation heat exchanger on the other hand, so that the ambient temperature of the air source heat pump unit is increased, and the working condition of the air source heat pump unit is improved. So can in time dispel the heat that solar array produced, promote solar power generation unit's electricity conversion efficiency, extension panel's life, utilize the heat that solar power generation unit produced to improve air source heat pump unit's heating efficiency ratio simultaneously, make air source heat pump unit is more energy-conserving high-efficient.

Preferably, an airflow driving component (not shown) is further disposed in the air heat dissipation channel 2 to ensure that air can flow into the air heat dissipation channel 2 from the air inlet 21 and flow out from the air outlet 22, and the airflow driving component may be, for example, a driving fan, a blower, or the like, through which external air is forced to enter the air heat dissipation channel 2 and form a flow from the air inlet 21 toward the air outlet 22, so as to form more efficient heat transfer and utilization.

As an embodiment of the installation platform, preferably, the installation platform includes a bottom plate 31 disposed opposite to and parallel to the solar array 1, and upright walls 32 disposed at both sides of the bottom plate 31, the bottom plate 31 and the vertical wall 32 form a mounting cavity with an opening at one side, the solar array 1 is covered and mounted at the opening, it can be understood that the vertical wall 32, the bottom plate 31 and the solar array 1 above form the air heat dissipation channel 2, so that the structure of the solar device is simpler and more compact, and further, the bottom plate 31 is provided with an insulating layer, which is beneficial to the subsequent recycling of the heat of the hot air in the air heat dissipation channel 2, at the same time, it can also effectively isolate the heat loss in the space under the floor 31 (e.g. the floor 31 can be used as a roof to keep the house warm). The outer side of the side vertical wall 32 can be additionally provided with a wrapping structure, and the wrapping structure can protect the vertical wall 32 and improve the aesthetic feeling of the appearance of the solar device.

Further, the mounting platform further includes a plurality of support frames 33 arranged in parallel, the plurality of support frames 33 are arranged in the mounting cavity at intervals, and the air heat dissipation channel 2 is divided into a plurality of sub-flow channels 24, this way is particularly suitable for the case that the area of the solar array 1 is large, the solar array 1 at this time may include a plurality of solar panels 11 electrically connected in series and parallel and spliced with each other, and further, the support frames 33 are located between two solar panels 11 adjacent to each other to support and connect the two solar panels 11.

Preferably, the air outlets 22 of the sub-channels 24 are collected to a hot air collecting pipe 23, the airflow driving component is located in the hot air collecting pipe 23, the main function of the hot air collecting pipe 23 is to collect and communicate the hot air in each sub-channel 24 with the subsequent air source heat pump unit, so that the structural design is more compact, and it can be understood that the sub-channels 24 may also be led into the air source heat pump unit independently from each other; of course, the airflow driving component may also be located at the air outlet of the air source heat pump unit, and at this time, it is understood that the airflow driving component may be replaced by an air outlet fan (exhaust fan) of the air source heat pump unit.

Optionally, the air heat dissipation channel 2 has a plurality of air heat dissipation channels 2, the plurality of air heat dissipation channels 2 exist independently from each other without being limited to the above-mentioned separated formation by the support frame 33, the air outlets 22 of the plurality of air heat dissipation channels 2 are collected to the hot air collecting pipe 23, and the airflow driving component is located in the hot air collecting pipe 23 or at the air outlet of the air source heat pump unit.

Preferably, the solar cogeneration device further comprises a monitoring component, wherein the monitoring component comprises a plurality of sensors 51, and the plurality of sensors 51 are arranged on the side wall or the bottom wall of the mounting platform in the air heat dissipation channel 2 (specifically, for example, in the sub-channel 24), and are in communication connection with a monitoring alarm module 52. The sensor 51 may be, for example, a temperature sensor for monitoring the temperature of the air in the air heat dissipation channel 2 (the ion channel 24) and the temperature of the solar cell panel 11 to achieve the optimum efficiency; an air component detector can be used for monitoring relevant component data of air so as to find out abnormal states of the device in advance, eliminate possible faults and put an end to electric fire hazards.

Further, the mounting platform comprises a support leg 34, and the support leg 34 is fixedly connected to one side of the bottom plate 31 far away from the solar array 1 and is used for forming a support with a specific inclination angle for the upper solar array 1. The support legs 34 may be of different forms in different applications, such as when mounted on a flat roof structure, where the support legs 34 cooperate with a cross-member and diagonal structure; in use in place of a roof, the support legs 34 may be replaced by beam purlin structures 35, such as shown in figure 6, the beam purlin structures 35 comprising a plurality of parallel spaced purlins 352 on the side of the base plate 31 remote from the solar array 1, the plurality of purlins 352 being disposed above a plurality of beams 351.

It can be understood that the solar device further includes a corresponding power conversion device 6, which is used for adjusting the direct current generated by the solar cell panel 11, such as converting, and is a known technology.

The area of the shadow in fig. 1 is shown as tempered glass 12, sunlight can penetrate through the tempered glass 12 to irradiate onto a bottom plate and a side wall (including a support frame 33 or a vertical wall 32) of the air heat dissipation channel 2 (specifically, in the sub-channel 24), the bottom plate and the side wall generate heat after absorbing the sunlight, the air in the air heat dissipation channel 2 is heated, and the tempered glass 12 has a certain heat preservation effect on hot air. The tempered glass 12 is not an essential component, and is only used for some specific working conditions, for example, a partial region of the solar array 1 of the solar device is in a region with a shadow shielding condition, one or more solar panels 11 of the plurality of solar panels 11 can be replaced by the tempered glass 12, so that the shadow is prevented from influencing the power generation of other solar panels 11 in the same group string, if the solar panels 11 are adopted in the region with the shadow shielding condition, the resource waste and the cost increase can be caused, and meanwhile, the tempered glass 12 can generate heat in addition to ensuring the integrity of the solar array platform, so that the heat utilization of the air in the air heat dissipation channel 2 below the tempered glass is facilitated; under another specific condition, for example, when more than 5 solar panels 11 are arranged in one air heat dissipation channel 2 or the sub-channel 24, the air temperature in the channel is very high, so that the temperature of the solar panel 11 close to the hot air collecting pipeline 23 is difficult to reduce or even rise, the power generation efficiency and the service life of the solar panel 11 are seriously affected, and at this time, the toughened glass 12 can be replaced by toughened glass 12 to continue to heat the air, but the power generation is not performed any more; under another specific condition, if the size of the edge and the top area can not meet the installation requirement of the solar cell panel 11, the toughened glass 12 is used for replacing the solar cell panel 11, the space is fully utilized for heating air, and the structural integrity is ensured.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The solar cogeneration device is characterized by comprising a solar power generation unit and an air source heat pump unit, wherein the solar power generation unit is provided with a solar array (1) and a mounting platform for mounting the solar array (1), the solar array (1) is provided with a plurality of solar panels (11) which are electrically connected, an air heat dissipation channel (2) is formed between the mounting platform and one backlight side of the solar array (1), the air heat dissipation channel (2) is provided with an air inlet (21) and an air outlet (22), the air source heat pump unit is provided with an evaporation heat exchanger, and the evaporation heat exchanger is communicated with the air outlet (22) so that hot air in the air heat dissipation channel (2) can enter the evaporation heat exchanger.

2. Cogeneration device according to claim 1, wherein air flow driving means are further provided in the air dissipation channel (2) to ensure that air can flow from the air inlet (21) into the air dissipation channel (2) and out from the air outlet (22).

3. Cogeneration plant according to claim 2, wherein said mounting platform comprises a bottom plate (31) disposed opposite to and parallel to said solar array (1) and upright walls (32) disposed on both sides of said bottom plate (31), said bottom plate (31) and said upright walls (32) forming a mounting cavity with one side open, said solar array (1) being mounted at said opening in a covering manner.

4. Cogeneration apparatus according to claim 3, wherein said mounting platform further comprises a plurality of support frames (33) arranged in parallel, said plurality of support frames (33) being arranged at intervals in said mounting cavity and dividing said air heat dissipation channel (2) into a plurality of sub-channels (24).

5. Cogeneration plant according to claim 4, wherein each of said sub-channels (24) has an outlet opening (22) which converges to a hot air collecting duct (23), said air flow driving means being located in said hot air collecting duct (23) or at the outlet opening of said air source heat pump unit.

6. Cogeneration plant according to claim 1, further comprising a monitoring unit comprising a plurality of sensors (51), said plurality of sensors (51) being arranged on the side wall of said mounting platform inside said air heat dissipation channel (2) and being in communication connection with a monitoring alarm module (52).

7. Cogeneration apparatus according to claim 2, wherein said air heat dissipation channel (2) has a plurality of air outlets (22) which said air heat dissipation channels (2) have respectively, which converge to a hot air collection duct (23), said air flow driving means being located in said hot air collection duct (23) or at the air outlet of said air source heat pump unit.

8. Cogeneration apparatus according to claim 1, wherein said air source heat pump unit is an air source heat pump unit (7).

9. Cogeneration plant according to claim 1, characterized in that said solar array (1) also has at least one piece of tempered glass (12).