CN215675586U - Photovoltaic energy storage building wall combined with air source heat pump - Google Patents
Photovoltaic energy storage building wall combined with air source heat pump Download PDFInfo
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- CN215675586U CN215675586U CN202122177871.9U CN202122177871U CN215675586U CN 215675586 U CN215675586 U CN 215675586U CN 202122177871 U CN202122177871 U CN 202122177871U CN 215675586 U CN215675586 U CN 215675586U
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Abstract
A photovoltaic energy storage building wall combined with an air source heat pump comprises an energy storage wall capable of supplying heat and refrigerating indoors, an air source heat pump and an energy storage system; the energy storage wall body sequentially comprises an energy collecting mechanism, an energy storage mechanism and an energy changing mechanism; the output end of the energy collecting mechanism is respectively connected with the air source heat pump and the energy storage system in parallel; the energy collecting mechanism is composed of a first support, a photovoltaic panel, a first fan, a second support, a first air cavity and switches A-D; the energy storage mechanism consists of a heat insulation layer and an energy storage layer; the energy conversion mechanism consists of a second air cavity, a wallboard with a second fan and an air supply outlet; the utility model discloses an utilize the phase change energy storage material energy storage to let can adjust the problem that air source heat pump energy supply system instability exists in a flexible way to lead to heat conduction heat accumulation material and play the promotion effect to improving photovoltaic heat accumulation wall system comprehensive efficiency, improve heat pump set's efficiency.
Description
Technical Field
The utility model belongs to solar energy utilization, and particularly relates to a photovoltaic energy storage building wall combined with an air source heat pump.
Background
The existing solar photovoltaic technology has the problem of low efficiency, and the instability of solar energy causes that the heat supply quantity cannot meet the requirement constantly due to the influence of poor external environment (such as cloudy days or other severe weather conditions). In addition, the air source heat pump in China is developed earlier, the technology is relatively mature, and the air source heat pump air conditioning system is mainly applied to air source water heaters and air source heat pump air conditioning systems.
With the continuous development of the building industry and the continuous adjustment of the energy structure in China, the proportion of energy consumption of producing and using buildings is continuously increased, and the energy consumption required by heating is not ignored. Therefore, the energy-saving design of buildings is more and more focused and appreciated by people.
Solar energy and air source heat pump heat source air energy are used as green and clean renewable energy sources. With the development and progress of science, the situation that energy is in short supply and energy is deficient becomes the sustainable development burden of China is improved by fully utilizing the energy, and the economic sustainable development of China is promoted.
The phase-change energy storage technology is gradually paid attention to in the field of building energy conservation, and the phase-change material with good phase-change stability and the metal chip mixture with good heat conductivity are filled in the wall main body to be used as a heat storage material, so that heat can be effectively stored, the energy utilization rate is improved, and the heat efficiency of the system is improved.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a photovoltaic energy storage building wall body combined with an air source heat pump, the utility model utilizes the energy storage and release of a phase-change energy storage material to flexibly adjust the instability of an energy supply system of the air source heat pump, and the heat conduction and storage material is introduced to play a promoting role in improving the comprehensive efficiency of a photovoltaic heat storage wall body system and improve the efficiency of a heat pump unit; the utility model combines the photovoltaic technology to provide electric energy for the air source heat pump and the fan independently when the air source heat pump system operates, thereby ensuring the operation of the system and utilizing renewable energy to the maximum extent.
In order to solve the problems of the prior art, the utility model adopts the following technical scheme:
a photovoltaic energy storage building wall combined with an air source heat pump comprises an energy storage wall capable of supplying heat and refrigerating indoors, an air source heat pump and an energy storage system; the energy storage wall body sequentially comprises an energy collecting mechanism, an energy storage mechanism and an energy changing mechanism; the output end of the energy collecting mechanism is respectively connected with the air source heat pump and the energy storage system in parallel; wherein:
the energy collecting mechanism is composed of a first support, a photovoltaic panel, a first fan, a second support, a first air cavity and switches A-D;
the energy storage mechanism consists of a heat insulation layer and an energy storage layer;
the energy conversion mechanism consists of a second air cavity, a wallboard with a second fan and an air supply outlet; wherein:
one end of the first support is connected with the photovoltaic panel through a first switch A, and the other end of the first support is connected with the energy storage mechanism through a third switch C; the photovoltaic panel is connected with the second support through a second switch B, and the second support is connected with the energy storage mechanism through a fourth switch D; the energy storage mechanism is connected with the energy acquisition mechanism through a first air cavity; and the energy storage mechanism is connected with the middle wallboard of the energy conversion mechanism through a second air cavity.
Further, a winter heating mode; the first air cavity between the photovoltaic panel and the heat insulation layer forms hot pressing action by utilizing the temperature difference between the external environment and the first air cavity and forms air flow by utilizing the action of a fan, so that the waste heat generated by the photovoltaic panel during power generation and solar radiation of the photovoltaic panel is taken away, and the second switch B is always in an open state during the period; and then the air enters the air source heat pump through the opened third switch C to improve the quality, and then the air is sent into a second air cavity in the wall to provide heat for a room, meanwhile, the phase change energy storage material filled in the energy storage layer absorbs a part of heat to store energy, and meanwhile, the first switch A and the fourth switch D are in a closed state.
Further, a summer cooling mode: the first air cavity between the photovoltaic panel and the heat preservation layer forms air flow under the action of a fan and the action of hot pressing by utilizing the temperature difference between the external environment and the air cavity, and takes away the waste heat generated by the photovoltaic panel during power generation and solar radiation to the photovoltaic panel; indoor air enters the air source heat pump to be cooled and then is sent into the second air cavity in the wall body to provide cold for a room, and meanwhile, the phase change energy storage material filled in the wall body absorbs a part of energy to store energy.
Further, energy-saving modes in winter and summer: the photovoltaic panel absorbs solar energy for power generation, and generated electricity mainly comprises an air source heat pump, a fan and a redundant electricity storage energy system.
Advantageous effects
1. The utility model utilizes the wall air cavity structure to connect the air source heat pump system, fully utilizes the air energy and solar energy technology, does not generate waste gas in the working process and does not damage the ozone layer. The clean energy is used to the maximum extent, thereby greatly improving the energy utilization efficiency, enabling the heat pump energy supply system to be more stable and reliable, reducing the consumption of electricity once, namely reducing the generation of 1.5 pounds of carbon dioxide during power generation, saving 2/3 electric charges to the maximum extent, and being superior to the traditional device. The heat pump can be used for better improving the quality of energy and the temperature of the environment, so that the greenhouse effect is reduced.
2. The solar energy and the air energy are used as ideal clean energy with wide acquisition range, and the utilization of the solar energy and the air energy to the maximum extent accords with the concept of sustainable development; the utility model takes away the residual heat of the photovoltaic panel by utilizing the air cavity, improves the photovoltaic power generation efficiency, takes a silicon battery as an example, the highest conversion efficiency can reach 17-22 percent, and improves the effective conversion rate of the solar energy irradiated on the surface of the photovoltaic battery by about 5 percent. The energy is fully utilized to provide a heat source for the air source heat pump, the energy efficiency ratio of the system is improved, the energy efficiency ratio (COP) of the heat pump is at least more than 3.5, and the consumption of electric energy is further reduced.
3. This practicality is through the residual heat that photovoltaic board electricity generation and solar radiation produced is taken away to photovoltaic board electricity generation and solar radiation to the air flow in the air cavity between the wall body outside and photovoltaic board to and the inside phase transition energy storage material of wall body is through absorbing the release energy under different work condition, can the effective control wall structure temperature, makes the distribution in envelope temperature field keep even throughout the year, and then difficult crack phenomenon that produces, the potential safety hazard that the effective control envelope crack brought.
4. The photovoltaic module attached to the surface of the wall body is used for generating power to supply energy to the air source heat pump and the unit, so that the system can supply energy autonomously, and the consumption of external energy supply is reduced. The surplus electric quantity of about 15 percent is connected to the grid or stored by the storage battery, the energy utilization efficiency of the system can be improved, and the effect of peak load shifting is achieved. The energy is effectively utilized, the energy-saving effect is obvious, and the popularization value is high.
5. The utility model constructs a system for supplying heat in modes of preheating air flow through an air cavity, supplying heat by an air source heat pump system and storing energy by an energy storage material in a wall body in winter, and combines a heat supply system with a wall body structure. Meanwhile, a system for storing energy through energy storage materials in the wall body in summer for assisting in refrigeration is constructed, and the energy utilization efficiency of system operation is improved.
Drawings
Fig. 1 is a cross-sectional view of a functional wall.
Fig. 2 is a schematic diagram of the working mode of the building wall in winter.
FIG. 3 is a schematic diagram of the summer working mode of the building wall body.
Detailed Description
The technical scheme of the utility model is further explained by combining the attached drawings.
As shown in fig. 1-3, the utility model provides a photovoltaic energy storage building wall combined with an air source heat pump, which comprises an energy storage wall 100 capable of supplying heat and cooling to the indoor, an air source heat pump 401 and an energy storage system 501; the energy storage wall 100 is sequentially composed of an energy collecting mechanism 101, an energy storage mechanism 201 and an energy changing mechanism 301; the output end of the energy collecting mechanism 101 is respectively connected with an air source heat pump 401 and an energy storage system 501; wherein:
the energy collecting mechanism 101 comprises a first bracket 102, a photovoltaic panel 103, a first fan 104, a second bracket 105, a first air cavity 106 and switches A-D;
the energy storage mechanism 201 is composed of an insulating layer 202 and an energy storage layer 203; the energy storage layer 201 is made of a phase change energy storage material.
The energy conversion mechanism 301 is composed of a second air cavity 302, a wall board 305 with a second fan 303 and an air supply outlet 304; wherein:
one end of the first support 102 is connected with the photovoltaic panel 103 through a first switch a, and the other end of the first support is connected with the energy storage mechanism 201 through a third switch C; the photovoltaic panel 103 is connected with the second support 105 through a second switch B, and the second support 105 is connected with the energy storage mechanism 201 through a fourth switch D; the energy storage mechanism 201 is connected with the energy collecting mechanism 101 through a first air cavity 106; the energy storage mechanism 201 is connected with the wall plate in the energy change mechanism 301 through a second air cavity 302.
As shown in fig. 2, the present invention is in the winter working mode:
under the daytime energy storage working condition:
1. the heat supply function:
the first air cavity 106 between the photovoltaic panel 103 and the insulating layer 202 forms air flow by utilizing the thermal pressing effect and the fan effect formed by the temperature difference between the external environment and the first air cavity, takes away the waste heat generated by the photovoltaic panel 103 during power generation and solar radiation to the photovoltaic panel, and the second switch B is always in an open state during the period; the process is a preheating process, then the air source heat pump 401 is started through the opened third switch C, the air source heat pump is conveyed into the second air cavity 302 in the wall body to provide heat for a room after the quality of the air source heat pump is improved, meanwhile, the phase change energy storage material filled in the energy storage layer 203 absorbs a part of heat to store energy, and meanwhile, the first switch A and the fourth switch D are in a closed state.
2. The power supply function:
the photovoltaic panel 103 absorbs solar energy for power generation, generated power generation capacity mainly supplies energy for the air source heat pump and the fan, and redundant electric quantity is stored in the storage battery or is connected to the grid.
Under the night energy release working condition:
no sunlight is irradiated at night, the photovoltaic panel 103 does not work, the switches A-D are closed, the air source heat pump 401 stops running, indoor air enters the second air cavity 302 under the action of the second fan 303, the energy storage mechanism 201 releases energy to the second air cavity 302 at night through the energy storage process at daytime, and the air in the second air cavity 302 is heated by the energy storage mechanism and then is delivered to the room through an air supply outlet to supply heat for the room.
As shown in fig. 3, the summer working mode of the utility model:
under the daytime energy storage working condition:
1. cooling function:
Indoor air enters the air source heat pump 401 to be cooled and then is sent into the second air cavity 302 in the wall body to provide cold for a room, and meanwhile, the phase change energy storage material filled in the wall body absorbs a part of energy to store energy.
2. The power supply function:
the photovoltaic panel 103 absorbs solar energy for power generation, generated power generation capacity mainly supplies energy for the air source heat pump and the fan, and redundant electric quantity is stored in the storage battery or is connected to the grid.
Under the night energy release working condition:
no sunlight is irradiated at night, the photovoltaic panel 103 does not work, the switches A-D are closed, the air source heat pump 3011 stops running, indoor air enters the second cavity under the action of the second fan 303, the energy storage mechanism 201 releases energy to the air at night through the energy storage process at daytime, and the air is sent to the indoor for refrigeration through lower air supply after the air temperature is reduced.
It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (4)
1. The photovoltaic energy storage building wall combined with the air source heat pump is characterized by comprising an energy storage wall capable of supplying heat and refrigerating indoors, an air source heat pump and an energy storage system; the energy storage wall body sequentially comprises an energy collecting mechanism, an energy storage mechanism and an energy changing mechanism; the output end of the energy collecting mechanism is respectively connected with the air source heat pump and the energy storage system in parallel; wherein:
the energy collecting mechanism is composed of a first support, a photovoltaic panel, a first fan, a second support, a first air cavity and switches A-D;
the energy storage mechanism consists of a heat insulation layer and an energy storage layer;
the energy conversion mechanism consists of a second air cavity, a wallboard with a second fan and an air supply outlet; wherein:
one end of the first support is connected with the photovoltaic panel through a first switch A, and the other end of the first support is connected with the energy storage mechanism through a third switch C; the photovoltaic panel is connected with the second support through a second switch B, and the second support is connected with the energy storage mechanism through a fourth switch D; the energy storage mechanism is connected with the energy acquisition mechanism through a first air cavity; and the energy storage mechanism is connected with the middle wallboard of the energy conversion mechanism through a second air cavity.
2. The photovoltaic energy storage building wall combined with the air source heat pump as claimed in claim 1, wherein in winter heating mode; the first air cavity between the photovoltaic panel and the heat insulation layer forms hot pressing action by utilizing the temperature difference between the external environment and the first air cavity and forms air flow by utilizing the action of a fan, so that the waste heat generated by the photovoltaic panel during power generation and solar radiation of the photovoltaic panel is taken away, and the second switch B is always in an open state during the period; and then the air enters the air source heat pump through the opened third switch C to improve the quality, and then the air is sent into a second air cavity in the wall to provide heat for a room, meanwhile, the phase change energy storage material filled in the energy storage layer absorbs a part of heat to store energy, and meanwhile, the first switch A and the fourth switch D are in a closed state.
3. The photovoltaic energy storage building wall combined with the air source heat pump according to claim 1, wherein in a summer cooling mode: the first air cavity between the photovoltaic panel and the heat preservation layer forms air flow under the action of a fan and the action of hot pressing by utilizing the temperature difference between the external environment and the air cavity, and takes away the waste heat generated by the photovoltaic panel during power generation and solar radiation to the photovoltaic panel; indoor air enters the air source heat pump to be cooled and then is sent into the second air cavity in the wall body to provide cold for a room, and meanwhile, the phase change energy storage material filled in the wall body absorbs a part of energy to store energy.
4. The photovoltaic energy storage building wall combined with the air source heat pump according to any one of claims 1-3, wherein in the winter and summer energy saving mode: the photovoltaic panel absorbs solar energy for power generation, and generated electricity mainly comprises an air source heat pump, a fan and a redundant electricity storage energy system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122177871.9U CN215675586U (en) | 2021-09-09 | 2021-09-09 | Photovoltaic energy storage building wall combined with air source heat pump |
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| CN202122177871.9U CN215675586U (en) | 2021-09-09 | 2021-09-09 | Photovoltaic energy storage building wall combined with air source heat pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115387535A (en) * | 2022-10-28 | 2022-11-25 | 中国建筑一局(集团)有限公司 | Building wallboard with heat preservation function and use method thereof |
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- 2021-09-09 CN CN202122177871.9U patent/CN215675586U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115387535A (en) * | 2022-10-28 | 2022-11-25 | 中国建筑一局(集团)有限公司 | Building wallboard with heat preservation function and use method thereof |
| CN115387535B (en) * | 2022-10-28 | 2023-03-24 | 中国建筑一局(集团)有限公司 | Building wallboard with heat preservation function and use method thereof |
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