CN114353216A

CN114353216A - Energy composite utilization system and control method and control device thereof

Info

Publication number: CN114353216A
Application number: CN202111504295.2A
Authority: CN
Inventors: 武发德; 刘长柏; 滕伟广; 许树栋
Original assignee: Beijing New Building Material Group Co Ltd
Current assignee: Beijing New Building Material Group Co Ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-04-15

Abstract

Provided are an energy source combined utilization system, and a control method and a control device thereof. The energy source compound utilization system comprises an outdoor energy collecting device, an indoor heat exchange device and an air conveying pipeline; the energy collecting device comprises a shell at least partially transparent and a heat collecting plate arranged in a gas collecting cavity in the shell, wherein the shell is provided with a first air inlet and a first air outlet which are communicated with the gas collecting cavity, and the heat collecting plate can convert solar energy into heat energy to heat air in the gas collecting cavity; the heat exchange device is provided with a second air inlet and a second air outlet which are communicated with the heat exchange pipeline; the air conveying pipeline comprises a fan, a first pipeline communicated with a first air outlet and a fan air inlet end, and a second pipeline communicated with a fan air outlet end and a second air inlet end, and the fan can pump out air in the air collection cavity and send the air into the room through the heat exchange device. The system exchanges heat with indoor air through the energy collecting device and the heat exchange device, can improve the comfort of people's living environment, and reduces energy consumption.

Description

Energy composite utilization system and control method and control device thereof

Technical Field

The present disclosure relates to, but not limited to, the field of building technologies, and in particular, to an energy compound utilization system, and a control method and a control device thereof.

Background

At present, the building energy consumption of China is about 1/4 of the total social energy consumption, wherein the energy consumption of a heating air conditioner is about 50% -60% of the energy consumption of a building. With the increasing shortage of energy, the country pays more and more attention to energy conservation and has higher and more environmental requirements on buildings, so that new alternative energy needs to be found.

At present, the common energy sources of residential buildings are commercial power, gas, coal and fuel oil. For example, gas is used for heating, water is used for cooking, and commercial power is used for completing various functions such as illumination, heating, cooling and the like through various electrical equipment. China is one of the countries with rich solar energy resources, and the total solar energy radiation amount is 3300-². Therefore, the full utilization of solar energy is one of the effective ways for building energy conservation.

In recent years, with intensive research on solar energy, solar energy is increasingly used, for example, solar power generation and solar hot water. But at present, the remainder of the solar energy is not utilized, except for 20% power generation. Therefore, the solar energy utilization efficiency is also very limited, and the related art is also limited. Particularly, the carbon peak reaching and carbon neutralization are proposed in the country of the year, and the effective and wide utilization of various energy sources such as solar energy, wind energy and the like is inevitably promoted. And the research of combining multiple energy technologies and phase change energy storage is of great significance to the application research of converting solar energy into building energy.

At present, in the aspects of energy conservation and consumption reduction of building houses and new energy utilization, only a single certain energy conservation and consumption reduction technology is utilized at present. For example, solar power generation or solar water heaters are used, and some technologies are still in the initial stage, and no deep research is performed, and for example, in the aspect of utilizing solar energy on the surface of the outer facade of a house, a solar panel is generally only used for completing the power generation function, and how to utilize the problem of higher temperature of the outer facade in winter, the research is less in the aspect.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

Disclosure of Invention

The embodiment of the application can more efficiently utilize the electric energy and the heat energy generated by irradiating sunlight on the building outer wall, and combines the solar photoelectric technology, the photo-thermal technology and the phase-change energy storage technology together. By comprehensively utilizing the energy technologies on buildings, the living environment of the buildings is more comfortable, and meanwhile, the energy-saving and consumption-reducing solar energy-saving building more conforms to the national industry guidance direction for fully utilizing solar energy.

An embodiment of the application provides an energy source combined utilization system. The energy source compound utilization system comprises an outdoor energy collecting device, an indoor heat exchange device and an air conveying pipeline; the energy collecting device comprises a shell at least partially transparent and a heat collecting plate arranged in a gas collecting cavity in the shell, wherein a first air inlet and a first air outlet communicated with the gas collecting cavity are formed in the shell, and the heat collecting plate can convert solar energy into heat energy to heat air in the gas collecting cavity; the heat exchange device is provided with a second air inlet and a second air outlet which are communicated with the heat exchange pipeline; the air conveying pipeline comprises a fan, a first pipeline and a second pipeline, the first pipeline is communicated with the first air outlet and the air inlet end of the fan, the second pipeline is communicated with the air outlet end of the fan and the second air inlet end of the fan, and the fan can pump out air in the air collection cavity and send the air into a room through the heat exchange device.

Another embodiment of the present application provides a control method for an energy compound utilization system, which is applied to the energy compound utilization system. The control method comprises the following steps: controlling the fan and the control valve to enable the energy source compound utilization system to realize at least one of the following working modes:

the first working mode is set to supply gas to the heat exchange device by the energy collecting device;

the second working mode is set to supply gas to the energy storage device by the energy collecting device;

and the third working mode is set to supply gas to the heat exchange device by the energy storage device.

Another embodiment of the present application provides a control device for an energy complex utilization system. The control device comprises a controller, wherein the controller is used for realizing the control method; wherein the controller is configured to be electrically connected to the control valve.

After the technical scheme is adopted, the embodiment of the application has the following beneficial effects:

by arranging the energy collecting device, the energy of sunlight can be collected by the heat collecting plate, for example, the energy collecting device can be arranged on the sunny surface of an outer wall in winter to absorb the heat of the sunlight, and then the indoor air is subjected to heat exchange by the heat exchange device to improve the indoor temperature. In summer, can set up the energy collecting device in the shady face of outer wall to avoid shining of sunshine, collect cold energy, then also carry out the heat exchange with the help of heat transfer device to indoor air, in order to reduce indoor temperature. Through the energy composite utilization system that this application embodiment provided, can improve people's living environment's travelling comfort, also can reduce energy consumption simultaneously.

Other aspects will be apparent upon reading and understanding the attached drawings and detailed description.

Drawings

The accompanying drawings are included to provide a further understanding of the claimed subject matter and are incorporated in and constitute a part of this specification, illustrate embodiments of the subject matter and together with the description serve to explain the principles of the subject matter and not to limit the subject matter.

Fig. 1 is a schematic structural diagram of an energy source complex utilization system according to an embodiment of the present application;

FIG. 2 is an enlarged partial schematic view of FIG. 1 at reference A;

FIG. 3 is a first flow diagram of an energy complex utilization system in accordance with certain exemplary embodiments of the present application;

FIG. 4 is a schematic illustration of a first flow path and a second flow path of an energy complex utilization system in accordance with certain exemplary embodiments of the present application;

FIG. 5 is a first schematic flow diagram illustrating a first flow path, a second flow path, and a third flow path of an energy complex utilization system according to some exemplary embodiments of the present disclosure;

FIG. 6 is a second schematic view of a first flow path, a second flow path, and a third flow path of the energy complex utilization system in accordance with certain exemplary embodiments of the present application;

FIG. 7 is a block diagram of a control device according to another embodiment of the present application;

FIG. 8 is a first flowchart illustrating operation of a control device according to some exemplary embodiments of the present application;

FIG. 9 is a second flowchart of the operation of the control device in some exemplary embodiments of the present application;

FIG. 10 is a third flowchart of the operation of the control device in some exemplary embodiments of the present application;

fig. 11 is a fourth flowchart of the operation of the control device in some exemplary embodiments of the present application.

Reference numerals:

1-an energy collecting device;

11-a first air outlet, 12-a shell, 13-a heat collecting plate, 14-a gas collecting cavity, 15-a solar panel, 16-a heat insulating layer, 17-a first pipeline, 18-a first valve and 19-a first air inlet;

2-heat exchange means;

21-a second air inlet, 22-a second air outlet, 23-a second pipeline, 24-a third valve and 25-a heat exchange pipeline;

3-an air filter;

4-an energy storage device;

41-third air inlet, 42-fourth pipeline, 43-fifth valve, 44-third pipeline, 45-second valve, 46-third air outlet, 47-fourth valve, 48-fourth air inlet, 49-sixth valve, 410-exhaust pipe, 411-intake pipe;

5, a fan; 6-phase change energy storage material; 7-heating a tube; 8-safety valve;

100-a first flow path; 200-a second flow path; 300-a third flow path;

400-a control device;

401-controller, 402-first temperature sensor, 403-second temperature sensor, 404-pressure sensor.

Detailed Description

The technical scheme of the application is further explained by the specific implementation mode in combination with the attached drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application.

In one embodiment of the present application, as shown in fig. 1-2, an energy source complex utilization system is provided. The energy source compound utilization system comprises an energy collecting device 1 arranged outdoors, a heat exchange device 2 arranged indoors and an air conveying pipeline. Wherein the energy collecting device 1 is provided to include an at least partially light-transmitting casing 12 and a heat collecting plate 13 disposed in a gas collecting cavity 14 inside the casing 12, as shown in fig. 1, an outer side surface (i.e., a surface indicated by 15 in the figure) of the casing 12 may be provided with a light-transmitting material, such as glass. The energy collecting device 1 can be an energy collecting unit or can be formed by assembling a plurality of energy collecting units, the energy collecting units can be arranged to be rectangular, and the plurality of energy collecting units are combined to form the complete energy collecting device 1 so as to improve the adjustment flexibility of the whole energy compound utilization system. A plurality of energy collecting units can be spliced into a whole energy collecting wall surface in a matrix form so as to improve the sunlight receiving daylighting area.

In addition, a first air inlet 19 and a first air outlet 11 which are communicated with the air collecting cavity 14 are arranged on the shell 12. Of course, the energy collecting device 1 may be provided with only one gas inlet and one gas outlet, or may be provided with a plurality of or multiple groups, so as to increase the gas replacement flow speed and further increase the heat collecting efficiency of the system. The gas collecting cavity 14 may be rectangular as shown in fig. 1, or the gas collecting cavity 14 may be other shapes according to the shape and structure of the actual wall surface, so that the gas collecting cavity has a certain space for storing gas.

The heat collecting plate 13 in the energy source composite utilization system can convert solar energy into heat energy for heating air in the air collecting cavity 14, and the heat collecting plate 13 can be arranged as an aluminum plate with black painted exposed surface. In addition, for better sunlight absorption, the heat collecting plate 13 may be set to be black and set to be irradiated by direct sunlight, i.e., set opposite to the light-transmitting portion of the housing 12, so as to facilitate the collection of sunlight heat. When outdoor lower air is needed, the energy collecting device 1 can be arranged on the backlight surface of the outer wall, and at the moment, the heat collecting plate 13 can be set to be white, so that the collection of external heat is further reduced, the overall regulation flexibility of the system is improved, and the collection and the reutilization of various energy sources are facilitated.

In addition, in order to facilitate the heat exchange device 2 to exhaust air indoors, a second air outlet 22 is further arranged at the output end of the heat exchange device 2, and the air in the air collecting cavity 14 can directly enter the room after flowing out of the second air outlet 22 of the heat exchange device 2, so that the heat loss in the transmission process is reduced. According to the layout of the indoor space, a plurality of heat exchange devices 2 can be arranged in series, namely, the heat exchange efficiency is improved.

The heat exchange device 2 is further arranged with a heat exchange duct 25, by means of which heat exchange duct 25 the second air inlet 21 and the second air outlet 22 are in communication. To increase the contact area of the heat exchange duct 25 with the indoor air, the heat exchange duct 25 may be configured to be folded in a meandering manner as shown in fig. 1. Similarly, the second air outlets 22 of the heat exchanger 2 may be arranged in a plurality of rooms according to the indoor layout, and in order to control the flow rate and the air flowing speed of the air flowing into each space, a flow control valve may be arranged at each second air outlet 22 to realize real-time adjustment, which is not further described herein.

In addition, a fan 5 is further arranged on the air conveying pipeline, and the fan 5 can provide power for air transmission. The air delivery line comprises a first line 17 and a second line 23, wherein the first line 17 is arranged to communicate the first air outlet 11 with the air inlet of the fan 5, and the second line 23 is arranged to communicate the air outlet of the fan 5 with the second air inlet 21. Air in the air collecting cavity 14 can be extracted by the fan 5, and hot air is sent into a room through the heat exchange device 2.

As for the material of the air delivery pipe, a rubber hose, metal, plastic, or the like can be used. In addition, in order to improve the quality of the air entering the room, an air filter may be disposed on the air conveying pipeline, or may be disposed at two end points of the air conveying pipeline, as shown in fig. 1, the air filter 3 is disposed at the first air outlet 11 of the energy collecting device 1, or of course, the air filter 3 (not shown in the figure) may be disposed at the air output end, for example, the second air outlet 22.

Through foretell energy complex utilization system, can improve people's living environment's travelling comfort, also can reduce comprehensive energy consumption simultaneously, improve collection and reuse rate to solar energy.

In some exemplary embodiments, as shown in fig. 1, the energy collecting device 1 is further arranged to comprise a solar panel 15, and the solar panel 15 is arranged at the light collecting side of the gas collecting chamber 14, and the heat collecting plate 13 is arranged at the opposite side of the solar panel 15, wherein the solar panel 15 is arranged to be at least partially light-transmissive.

The solar cell panel 15 can be a cadmium telluride cell panel, and the weak light property of the cadmium telluride cell panel can be used for realizing the power generation function when the sunlight is insufficient, so that the light collection capability of the energy collection device 1 is improved. The solar cell panel 15 is provided on the side of the energy collector 1 where light is collected, that is, on the side where direct sunlight is irradiated. Meanwhile, the heat collecting plate 13 is arranged on one side, away from the lighting side, of the solar cell panel 15, namely the opposite side, namely sunlight firstly irradiates the solar cell panel 15 and then irradiates the heat collecting plate 13, the solar cell panel 15 can convert light energy into electric energy, unconverted light energy is converted into heat energy through the heat collecting plate 13, and one device can realize the collection and reutilization of two energy forms of the sunlight, so that the diversity of energy reutilization is increased.

The casing 12, the solar cell panel 15 and the heat collecting plate 13 together enclose the gas collecting cavity 14, and after the air is heated to a set temperature in the gas collecting cavity 14, the air is conveyed to the heat exchanging device 2 through a hose so as to subsequently enter the room, thereby realizing effective adjustment of the indoor and outdoor temperature difference.

The solar cell panel 15 is made of a light-transmitting material, such as glass, and other electrical components of the solar cell panel are disposed on the glass substrate.

In some exemplary embodiments, as shown in fig. 1, in order to effectively reduce the loss of heat energy in the gas collecting chamber 14, an insulating layer 16 is further disposed in the energy collecting device 1. The insulating layer 16 is disposed between the inner wall of the housing 12 and the heat collecting plate 13, and the insulating layer 16 may be U-shaped, that is, as shown in the drawing, the insulating layer 16 is disposed between the inner wall of the opaque portion of the housing 12 and the heat collecting plate 13. The heat preservation layer 16 is only arranged on the other five surfaces of the shell 12 except the lighting side, so that heat preservation treatment on heat in the gas collection cavity 14 can be realized, and adverse effects on light collection can be effectively avoided.

The solar cell panel 15 and the heat collecting plate 13 are oppositely arranged, and the heat insulating layer 16, the solar cell panel 15 and the heat collecting plate 13 together form the gas collecting cavity 14. In practical applications, the heat collecting plate 13 may also be U-shaped according to the area irradiated by light, that is, the inner wall surface of the solar cell panel 15 and the inner wall surface of the U-shaped heat collecting plate 13 form the gas collecting chamber 14.

In addition, to simplify the assembly of the insulation layer 16, the insulation layer 16 may be adhered to the inner wall surface of the housing 12 by means of an adhesive.

In some exemplary embodiments, as shown in fig. 1-2, to avoid excess thermal energy, the energy compound utilization system is further configured to include an energy storage device 4. An energy storage cavity is arranged in the energy storage device 4, and a third air inlet 41 and a third air outlet 46 which are communicated with the energy storage cavity are also arranged on the energy storage device 4.

The air conveying pipeline also comprises a third pipeline 44, the third air inlet 41 is communicated with the second pipeline 23 through the third pipeline 44, when the hot gas in the gas collecting cavity 14 is not needed indoors, the hot gas in the gas collecting cavity 14 can be temporarily stored in the energy storage device 4, and the waste of energy is avoided.

The energy storage means 4 is arranged to absorb thermal energy from the hot air and store the thermal energy. To reduce the waste of energy in the energy storage device 4, a thermal insulation material may be disposed around the energy storage device 4 to delay the heat exchange between the energy storage device 4 and the storage environment.

In some exemplary embodiments, as shown in fig. 1, a Phase Change Material (PCM-Phase Change Material) is further disposed in the energy storage cavity of the energy storage device 4, and the Phase Change Material is a substance that changes a state of a substance at a Phase Change temperature and can provide latent heat. The process of changing physical properties is called a phase change process, and in this case, the phase change material absorbs or releases a large amount of latent heat.

Wherein, still be equipped with the circuitous hollow tube (not shown in the figure) that is used for hot-air to circulate to third gas outlet 46 from third air inlet 41 in energy storage device 4's the energy storage intracavity, wherein, phase change energy storage material 6 encircles the hollow tube and sets up, and design like this, multiplicable hot-air and phase change energy storage material 6's area of contact improves heat transfer effect and heat exchange efficiency.

In some exemplary embodiments, as shown in fig. 1-2, to realize the on/off of the gas passage and to improve the accuracy of the gas flow control, the energy source compound utilization system further includes a control valve. Wherein the control valve is arranged to comprise a first valve 18 and the first valve 18 is arranged on the first line 17. A first valve 18 is used for controlling the on-off and opening degree of the channel of the gas flowing out of the gas collecting cavity 14 and leading to the heat exchange device 2. According to the arrangement mode, the energy source compound utilization system has a first working mode, namely, the energy collecting device 1 supplies air to the heat exchange device 2 for heat exchange.

In other exemplary embodiments, as shown in fig. 2, the control valve is further configured to include a second valve 45 and a third valve 24, wherein the first valve 18 is disposed on the first line 17 to enable the first line 17 to be opened and closed. A second valve 45 is provided on the third line 44 to open and close the third line 44. The third valve 24 is disposed on the second pipeline 23 and located on the section between the communication port of the third pipeline 44 and the second air inlet 21, so as to realize whether to send the air in the air collecting chamber 14 or the air in the energy storage device 4 into the heat exchanging device 2, and then to make the hot air enter the room to realize heat exchange.

In addition, the energy storage device 4 is further provided with an exhaust pipe 410, the exhaust pipe 410 is provided with a third air outlet 46, the control valve further comprises a fourth valve 47 arranged on the exhaust pipe 410, and the fourth valve 47 is used for realizing the connection or disconnection between the energy storage device 4 and the outdoor air, namely, the connection or disconnection of the exhaust pipe 410.

Wherein, can set up third air inlet 41 in energy memory 4's upper end, set up the lower extreme at energy memory 4 with blast pipe 410 and the third air outlet 46 on it, when inputing hot-air in energy memory 4, be about to surplus heat energy and carry out temporary storage, the setting mode of above-mentioned air inlet and air outlet is favorable to hot-air and phase change energy storage material 6's abundant contact, improves the heat transfer effect, can avoid the waste of heat energy.

Through the arrangement of the pipeline and the control valve, two working modes of the energy source compound utilization system can be realized. The first working mode is that the energy collecting device 1 supplies air to the heat exchange device 2 for heat exchange, hot air in the air collecting cavity 14 reaches a preset temperature value and needs to be subjected to heat exchange indoors at the moment, and the hot air can be drawn out from the air collecting cavity 14 by the aid of the fan 5 and then flows through the first pipeline 17, the second pipeline 23 and the heat exchange pipeline 25 and then enters the rooms. Of course, when the energy source combined cycle system is in the first mode of operation, the first valve 18 and the third valve 24 are open, and the second valve 45 and the fifth valve 43 are closed.

When the hot air in the air collecting cavity 14 reaches a preset temperature value, but heat exchange is not required in the room at this time, and the temperature in the energy storage device 4 does not meet the requirement of the preset temperature value, that is, the external heat energy can be absorbed, the second operating mode needs to be started, that is, the energy collection device 1 supplies air to the energy storage device 4, at this time, the fourth valve 47 arranged on the exhaust pipe 410 of the energy storage device 4 needs to be opened, the third valve 24, the fifth valve 43 and the sixth valve 49 are closed, the second valve 45 arranged on the third pipeline 44 is opened, the fan 5 is also opened at this time, so that the hot air flows through the first pipeline 17, and the second pipeline 23 and the third pipeline 44 enter the energy storage cavity of the energy storage device 4 through the third air inlet 41, so that the hot air and the phase-change energy storage material 6 are in sufficient contact, and the heat energy in the hot air collected by the outdoor energy collection device 1 is completely transferred to the phase-change energy storage material 6 in the energy storage device 4, namely, the energy storage is realized, so that the waste of energy is avoided.

Additionally, in some exemplary embodiments, as shown in fig. 1, the air delivery line further comprises a fourth line 42, the fourth line 42 communicating a section of the first line 17 between the first valve 18 and the air intake of the blower 5 with a section of the third line 44 between the second valve 45 and the third air intake 41, and the control valve further comprises a fifth valve 43 disposed on the fourth line 42, wherein the fifth valve 43 is configured to open and close the fourth line 42.

Wherein, the energy storage device 4 is further provided with an air inlet pipe 411. The air inlet pipe 411 is further provided with a fourth air inlet 48, wherein the fourth air inlet 48 is communicated with the hollow pipe, the control valve further comprises a sixth valve 49 arranged on the air inlet pipe 411, and the sixth valve 49 is used for realizing on and off of the air inlet pipe 411.

Through the arrangement of the pipeline and the control valve, the two working modes of the energy compound utilization system, namely the first working mode and the second working mode, can be realized, and the third working mode can also be realized. Wherein the third mode of operation is arranged to feed the heat exchanging means 2 with gas from the energy storage means 4. The energy source compound utilization system is in a first working mode and a second working mode, and the opening and closing states of the valves in the control valve are not described any more, and a third working mode is mainly introduced.

When the hot air in the air collecting cavity 14 does not reach the preset temperature value, but heat exchange needs to be performed indoors at this time, a third working mode needs to be started, that is, the energy storage device 4 supplies air to the heat exchange device 2, in this working mode, the first valve 18, the second valve 45 and the fourth valve 47 need to be closed, the third valve 24, the fifth valve 43 and the sixth valve 49 need to be opened, and the fourth air inlet 48 can be arranged indoors, so that the indoor air enters the hollow pipe in the energy storage cavity of the energy storage device 4 through the fourth air inlet 48, flows into the fourth pipeline 42 through the third air inlet 41, is driven by the fan 5 to be sent into the second pipeline 23, further enters the heat exchange pipeline 25 through the second air inlet 21, flows out into the indoor through the second air outlet 22, so as to bring the heat energy stored in the phase-change energy storage material 6 into the indoor, and further realize the adjustment of the indoor temperature, to improve the comfort of indoor perception.

In some exemplary embodiments, as shown in fig. 1, a heating pipe 7 is further disposed in the energy storage device 4, one end of the heating pipe 7 is connected to an output end of a solar cell panel 15 disposed in the energy collection device 1, and the other end of the heating pipe 7 extends into the phase change energy storage material 6, so that energy storage operation can be performed on the phase change energy storage material 6 through the solar cell panel 15 and the heating pipe 7, and when the energy stored in the outdoor energy collection device 1 and the energy storage device 4 cannot meet the requirement of indoor temperature, energy storage operation can be performed on the phase change energy storage material 6 by using the solar cell panel 15 and the heating pipe 7, so that flexibility of conversion and adjustment among various energy sources in the composite energy utilization system can be effectively improved, and convenience in operation can be improved.

In another embodiment of the present application, a method for controlling an energy complex utilization system is also provided. The control method is applied to the energy compound utilization system. The control method comprises the following steps: controlling the fan and the control valve to enable the energy source compound utilization system to realize at least one of the following working modes:

In some exemplary embodiments, as shown in fig. 3, when the air delivery pipeline in the energy source combined utilization system only includes the fan 5, the first pipeline 17, the second pipeline 23, and the first valve 18 disposed on the first pipeline 17, the hot air collected in the air collecting chamber 14 of the energy collecting device 1 directly enters the heat exchanging device 2 via the first flow path 100 (indicated by the gas flow in fig. 3) and is delivered to the indoor. Of course, in the control method, the control of the fan 5 and the control valve is set to control both the first valve 18 and the fan 5 to be in the open state, so that the energy source combined utilization system works in the first working mode, that is, the energy collecting device 1 directly supplies air to the heat exchange device 2.

In some exemplary embodiments, as shown in fig. 4, when the air supply line in the energy source combined utilization system includes not only the blower 5, the first line 17 and the second line 23, and the first valve 18 disposed on the first line 17, but also includes a third valve 24 disposed on the second line 23, and the third valve 24 is used to control whether air enters the heat exchange device 2. The air delivery circuit further includes a third circuit 44, wherein one end of the third circuit 44 is in communication with the second circuit 23 at a position before the third valve 24 and the other end is in communication with the energy storage device 4 through the third air inlet 41. The control valve further comprises a second valve 45 arranged on a third pipeline 44, the energy composite utilization system is further provided with an energy storage device 4, a third air outlet 46 arranged on the energy storage device 4, an exhaust pipe 410 communicated with the third air outlet 46, and the exhaust pipe 410 is further provided with a fourth valve 47 for controlling the opening and the closing of the exhaust pipeline, namely the whole energy composite utilization system forms two gas flow paths, including the first flow path 100, and further comprising a second flow path 200 (shown as a mark of gas flowing in fig. 4) formed by the fan 5, the first pipeline 17, the second pipeline 23 (part), the third pipeline 44, an energy storage cavity in the energy storage device 4 and the exhaust pipe 410. The energy composite utilization system can realize two working modes, namely a first working mode and a second working mode, and can directly exchange heat to the heat exchange device 2, and also can store heat energy in the energy storage device 4 under the condition that the heat exchange device 2 does not need heat exchange, so that the waste of the heat energy is avoided, and the utilization efficiency of the whole energy composite utilization system is improved.

In the control method, when the control of the fan 5 and the control valve is set as follows: the first valve 18, the third valve 24 and the fan 5 are controlled to be opened, and the second valve 45 is controlled to be closed, so that the hot gas in the gas collecting cavity 14 in the energy collecting device 1 enters the heat exchanging device 2 through the first flow path 100, that is, the energy source combined utilization system works in the first working mode.

In the control method, when the control of the fan 5 and the control valve is set as follows: the first valve 18, the second valve 45, the fourth valve 47 and the fan 5 are controlled to be opened, and the third valve 24, the fifth valve 43 and the sixth valve 49 are controlled to be closed, that is, the hot air generated by the air collecting cavity 14 in the energy collecting device 1 flows to the outside through the second flow path 200 via the energy storage device 4, and the heat energy in the hot air is exchanged into the phase change energy storage material 6 in the energy storage cavity, that is, the energy source composite utilization system works in the second working mode to store energy.

In some exemplary embodiments, as shown in fig. 5, the air delivery circuit further comprises a fourth circuit 42, wherein the fourth circuit 42 is configured to communicate the section of the first circuit 17 between the first valve 18 and the air inlet of the fan 5 and the section of the third circuit 44 between the second valve 45 and the third air inlet 41, i.e. air can flow from the energy storage device 4, through the fan 5 into the second circuit 23 and into the heat exchange device 2 to be fed into the chamber.

The control valve further includes a fifth valve 43 disposed on the fourth pipeline 42, the energy source compound utilization system also includes an energy storage device 4, the energy storage device 4 further includes an air inlet pipe 411 having a fourth air inlet 48, the fourth air inlet 48 is disposed to be communicated with the hollow pipe, and the control valve further includes a sixth valve 49 disposed on the air inlet pipe 411. That is, the air inlet pipe 411, the hollow pipe, the fourth pipe 42, and parts of the first pipe 17 and the second pipe 23 form the third flow path 300 (as indicated by the gas flow in fig. 5). That is, the indoor air passes through the fourth air inlet 48, the sixth valve 49, the air inlet pipe 411, the hollow pipe, the third air inlet 41, the fourth pipeline 42, the fifth valve 43, the first pipeline 17, the fan 5, the third valve 24 and the second pipeline 23, and enters the second valve 45, the first valve 18 and the fourth valve 47 of the heat exchange device 2 in a closed state, and at the moment, the energy compound utilization system can realize three working modes.

The control method comprises the following steps when the control of the fan 5 and the control valve is set: and controlling the first valve 18, the third valve 24 and the fan 5 to be opened, and controlling the second valve 45 and the fifth valve 43 to be closed, namely, the energy source combined utilization system works in the first working mode, namely, hot air flows out of the energy collecting device 1, enters the heat exchange device 2 through the first flow path 100, and exchanges heat with indoor air.

The control method comprises the following steps when the control of the fan 5 and the control valve is set: the first valve 18, the second valve 45, the fourth valve 47 and the fan 5 are controlled to be opened, and the third valve 24, the fifth valve 43 and the sixth valve 49 are controlled to be closed or the fourth valve 47 is controlled to be closed and the sixth valve 49 is controlled to be opened, that is, the energy source combined utilization system operates in the second operation mode, that is, the hot air generated in the energy collecting device 1 does not need to exchange heat with the heat exchanging device 2, and enters the energy storage device 4 through the second flow path 200 for storage. The gas passing through the energy storage device 4 is discharged to the outside or sent to the inside.

The control method further comprises controlling the fan 5 and the control valve to: and controlling the third valve 24, the fifth valve 43, the sixth valve 49 and the fan 5 to be opened, and controlling the first valve 18, the second valve 45 and the fourth valve 47 to be closed, namely, the energy source composite utilization system works in the third working mode, namely, air enters the energy storage device 4 through the third flow path 300, is heated by the phase change energy storage material 6 stored in the energy storage cavity, and is sent to the heat exchange device 2 to be sent to the room, so that the process of releasing heat by the energy storage device 4 is realized.

In some exemplary embodiments, the first valve 18, the second valve 45, and the sixth valve 49 may be controlled to be opened, and the blower 5 is also in an open state. And controlling the third valve 24, the fifth valve 43 and the fourth valve 47 to be closed, so that the energy source compound utilization system works in the second working mode. That is, the heat-exchanged air is discharged from the fourth air inlet 48. The fourth valve 47, the fifth valve 43, and the third valve 24 may be controlled to be opened, and the fan 5 may be also in an open state. The first valve 18, the second valve 45 and the sixth valve 49 are controlled to be closed, so that the energy source compound utilization system works in the third working mode, namely, the energy storage device 4 releases energy, and the outside air enters the energy storage device 4 through the third air outlet 46 to take away the energy in the phase change energy storage material 6 so as to be discharged to the indoor through the heat exchange device 2. As shown in fig. 6, only one exhaust pipe 410 and one intake pipe 411 in the energy storage device 4 may be reserved, and the reserved pipes may be shared when the energy source composite utilization system operates in the second operation mode or the third operation mode, so as to simplify the structure of the energy storage device 4.

In another embodiment of the present application, as shown in fig. 7, a control device 400 of an energy complex utilization system is provided. The control device 400 comprises a controller 401, and the controller 401 is configured to implement the control method described above. The controller 401 is electrically connected to the control valves, that is, the first valve 18, the second valve 45, the third valve 24, the fourth valve 47, the fifth valve 43, and the sixth valve 49, and the controller 401 may also be electrically connected to the fan 5.

In some exemplary embodiments, as shown in fig. 7, the control device 400 further includes a first temperature sensor 402 electrically connected to the controller 401, wherein the first temperature sensor 402 may be disposed in the air collecting chamber 14 of the energy compound utilization system, at the first air outlet 11, or on the outer wall surface of the air filter 3, or integrated with the solar panel 15 and located on a side close to the air collecting chamber 14, and the first temperature sensor 402 is configured to detect the temperature of the air in the air collecting chamber 14 and notify the controller 401, that is, to realize real-time monitoring of the air temperature in the energy collecting device 1 by the control device 400.

As shown in fig. 8, when the controller 401 determines that the temperature of the air in the air collecting chamber 14 is greater than or equal to the first temperature threshold, that is, the requirement for supplying air to the room is met, the energy source combined utilization system operates in the first operating mode by controlling the fan 5 and the control valve, that is, the energy collecting device 1 supplies air to the heat exchanging device 2 through the first flow path 100.

In some exemplary embodiments, as shown in fig. 7, the control device 400 further includes a second temperature sensor 403 electrically connected to the controller 401, wherein the second temperature sensor 403 may be disposed within the energy storage device 4 and configured to detect the temperature of the air within the energy storage device 4 and notify the controller 401.

As shown in fig. 9, when the controller determines that the temperature of the air in the air collecting chamber 14 is greater than or equal to the first temperature threshold and the temperature of the air in the energy storage device 4 is less than the second temperature threshold, the energy source combined utilization system operates in the second operating mode by controlling the fan 5 and the control valve, that is, the energy collection device 1 supplies air to the energy storage device 4, so as to realize the storage operation of the hot air.

In some exemplary embodiments, as shown in fig. 10, when the controller 401 determines that the temperature of the air in the air collecting chamber 14 is less than the first temperature threshold and the temperature of the air in the energy storage device 4 is greater than or equal to the second temperature threshold, the energy compound utilization system operates in the third operating mode, that is, the energy storage device 4 supplies air to the heat exchange device 2, by controlling the fan 5 and the control valve. The first temperature threshold value can be set to be the same as the second temperature threshold value, and the second temperature threshold value can also be set to be slightly lower than the first temperature threshold value, so that the adverse effect of slight temperature fluctuation on the use of the energy source compound utilization system is avoided.

According to the environment where the energy storage device 4 is actually located, or the difference of the heat preservation measures of the energy storage device 4 itself, the energy storage device 4 is not required to supply air to the heat exchange device 2 for a long time, at this time, due to long-time storage, or adverse effects caused by the change of the environment on the energy storage in the phase change energy storage material 6 in the energy storage device 4, the controller 401 can control the fourth valve 47 and the sixth valve 49 on the energy storage device 4 to be closed, so that unnecessary air circulation is avoided, and unnecessary contact and heat exchange are reduced. When the energy source compound utilization system needs to work, the controller 401 controls the fourth valve 47 and the sixth valve 49 to be opened.

In some exemplary embodiments, as shown in fig. 7, the control device 400 further includes a pressure sensor 404 electrically connected to the controller 401, wherein the pressure sensor 404 may be disposed in the energy storage device 4, or only a pressure detection point is disposed on the energy storage device 4, and the pressure sensor 404 is configured to detect the pressure of the air in the energy storage device 4 and notify the controller 401.

As shown in fig. 11, when the controller 401 determines that the pressure of the air in the energy storage device 4 reaches the first pressure threshold, the energy composite utilization system is switched from the second working mode to the first working mode or the non-working state by controlling the fan 5 and the control valve, that is, at this time, the pressure in the energy storage device 4 reaches the safety threshold of the pressure, and it is not suitable to supply air to the inside of the energy composite utilization system, and the controller 401 can reduce the rotation speed of the fan 5 by controlling the fan 5, or directly turn off the fan 5 for a short time, so as to reduce the air pressure in the energy storage device 4. When the controller 401 determines that the pressure of the air in the energy storage device 4 is lower than the second pressure threshold, the energy compound utilization system is switched back to the second operating mode until the temperature of the air in the energy storage device 4 reaches the second temperature threshold.

Therefore, it can be seen that the pressure sensor 404 is provided to ensure the normal operation of the second operation mode, and may also be understood as a special case in the second operation mode, that is, intermittently supplies air into the energy storage device 4, which may be caused by an excessive air supply pressure of the fan 5, so that the air supply speed is far higher than the heat absorption speed of the phase change energy storage material 6 and the flow speed of the air in the energy storage cavity, so that a large amount of hot air is blown into the energy storage cavity of the energy storage device 4 in a short time, causing the pressure in the cavity to rise rapidly, and further causing a safety hazard, in order to avoid an unsafe accident caused by the above-mentioned situation, the pressure sensor 404 is specifically provided, and the air pressure in the energy storage device 4 is monitored in real time to realize the intermittent air supply to the energy storage device 4, until the temperature of the air in the energy storage device 4 fed back by the second temperature sensor 403 reaches the second temperature threshold, at which point the second mode of operation ends.

In other exemplary embodiments, in order to improve the safety of the gas flow, a safety valve 8 may be provided on the gas flow line. As shown in fig. 1, a safety valve 8 is disposed on the exhaust pipe 410 at which the third air outlet 46 of the energy storage device 4 is located, so as to perform an emergency pressure relief operation on the energy storage device 4. For example, when the air pressure value in the energy storage device 4 exceeds the safety pressure threshold value under the above judgment, or the above condition is monitored for a set time, the controller 401 may control the safety valve 8 to start, so as to implement a rapid pressure relief operation after starting, and improve the operation reliability of the whole energy composite utilization system.

According to practical situations, safety valves can be arranged on other pipe sections of the gas circulation pipeline, the arrangement principle is the same, and the detailed description is omitted.

In the description herein, the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing embodiments of the present application and simplifying the description, but do not indicate or imply that the structures referred to have particular orientations, are constructed and operated in particular orientations, and thus, are not to be construed as limiting the present disclosure.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," and "assembled" are to be construed broadly and, for example, may be fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening media, or may be connected through two elements. The specific meaning of the above terms herein can be understood in a specific context to one of ordinary skill in the art.

Although the embodiments disclosed herein are described above, the descriptions are only for the convenience of understanding the embodiments and are not intended to limit the disclosure. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure, and that the scope of the disclosure herein is to be limited only by the appended claims.

Claims

1. An energy source compound utilization system is characterized by comprising an outdoor energy collecting device, an indoor heat exchange device and an air conveying pipeline;

the energy collecting device comprises a shell at least partially transparent and a heat collecting plate arranged in a gas collecting cavity in the shell, wherein a first air inlet and a first air outlet communicated with the gas collecting cavity are formed in the shell, and the heat collecting plate can convert solar energy into heat energy to heat air in the gas collecting cavity;

the heat exchange device is provided with a second air inlet and a second air outlet which are communicated with the heat exchange pipeline;

the air conveying pipeline comprises a fan, a first pipeline and a second pipeline, the first pipeline is communicated with the first air outlet and the air inlet end of the fan, the second pipeline is communicated with the air outlet end of the fan and the second air inlet end of the fan, and the fan can pump out air in the air collection cavity and send the air into a room through the heat exchange device.

2. The energy composite utilization system of claim 1, wherein the energy collecting device comprises a solar panel, the solar panel is disposed on a lighting side of the gas collecting cavity, and the heat collecting panel is disposed on an opposite side of the solar panel; wherein the solar panel is arranged to be at least partially light transmissive.

3. The energy complex utilization system of claim 2, wherein said energy collection means further comprises an insulating layer; the heat insulation layer is arranged between the inner wall of the light-tight part of the shell and the heat collection plate.

4. The energy source compound utilization system according to any one of claims 1 to 3, further comprising an energy storage device, wherein the energy storage device is provided with a third air inlet and a third air outlet which are communicated with the energy storage cavity; the air conveying pipeline comprises a third pipeline, the third air inlet is communicated with the second pipeline through the third pipeline, and the energy storage device is arranged to be capable of absorbing heat energy in hot air and storing the heat energy.

5. The energy composite utilization system of claim 4, wherein a phase change energy storage material and a circuitous hollow tube for hot air to flow from a third air inlet to a third air outlet are disposed in the energy storage cavity of the energy storage device, and the phase change energy storage material is disposed around the hollow tube.

6. The energy complex utilization system according to any one of claims 1 to 3, comprising a control valve, wherein the control valve comprises a first valve, and the first valve is disposed on the first pipeline.

7. The energy complex utilization system of claim 5, comprising a control valve comprising a first valve, a second valve, and a third valve; the first valve is arranged on the first pipeline, and the second valve is arranged on the third pipeline; the third valve is arranged on the second pipeline and is positioned on a pipe section between the third pipeline communication port and the second air inlet;

the energy storage device further comprises an exhaust pipe with the third air outlet, and the control valve further comprises a fourth valve arranged on the exhaust pipe.

8. The energy compound utilization system of claim 7, wherein the air delivery line further comprises a fourth line communicating a section of the first line between the first valve and the air intake of the blower with a section of the third line between the second valve and the third air intake, the control valve further comprising a fifth valve disposed on the fourth line;

the energy storage device is provided with an air inlet pipe provided with a fourth air inlet, the fourth air inlet is communicated with the hollow pipe, and the control valve is further provided with a sixth valve arranged on the air inlet pipe.

9. A control method of an energy complex utilization system, which is applied to the energy complex utilization system according to claim 6, 7 or 8; the control method comprises the following steps: controlling the fan and the control valve to enable the energy source compound utilization system to realize at least one of the following working modes:

10. The control method of the energy complex utilization system according to claim 9, wherein the energy complex utilization system employs the energy complex utilization system according to claim 6,

the controlling the fan and the control valve includes: and controlling the first valve and the fan to be opened, so that the energy source compound utilization system works in the first working mode.

11. The control method of the energy complex utilization system according to claim 9, wherein the energy complex utilization system employs the energy complex utilization system according to claim 7,

the controlling the fan and the control valve includes: and controlling the first valve, the third valve and the fan to be opened and the second valve to be closed, so that the energy source compound utilization system works in the first working mode.

12. The control method of the energy complex utilization system according to claim 9, wherein the energy complex utilization system employs the energy complex utilization system according to claim 8,

the controlling the fan and the control valve includes: and controlling the first valve, the third valve and the fan to be opened, and controlling the second valve and the fifth valve to be closed, so that the energy source compound utilization system works in the first working mode.

13. The method according to claim 9, wherein the energy complex utilization system employs the energy complex utilization system according to claim 7, and the controlling the fan and the control valve includes:

and controlling the first valve, the second valve, the fourth valve and the fan to be opened, and controlling the third valve to be closed, so that the energy source combined utilization system works in the second working mode.

14. The method according to claim 9, wherein the energy complex utilization system employs the energy complex utilization system according to claim 8, and the controlling the fan and the control valve includes:

and controlling the first valve, the second valve, the fourth valve and the fan to be opened, and controlling the third valve, the fifth valve and the sixth valve to be closed, so that the energy source compound utilization system works in the second working mode.

15. The method according to claim 9, wherein the energy complex utilization system employs the energy complex utilization system according to claim 8, and the controlling the fan and the control valve includes: and controlling the third valve, the fifth valve, the sixth valve and the fan to be opened, and controlling the first valve, the second valve and the fourth valve to be closed, so that the energy source compound utilization system works in the third working mode.

16. A control apparatus of an energy complex utilization system, comprising a controller for implementing the control method according to any one of claims 10 to 15;

wherein the controller is configured to be electrically connected to the control valve.

17. The control device of claim 16, further comprising a first temperature sensor electrically connected to the controller and configured to detect the temperature of the air within the plenum and communicate the temperature to the controller;

and when the controller judges that the temperature of the air in the air collection cavity is greater than or equal to a first temperature threshold value, the energy source compound utilization system works in the first working mode by controlling the fan and the control valve.

18. The control device of claim 17, further comprising a second temperature sensor electrically connected to the controller and configured to sense the temperature of the air within the energy storage device and communicate to the controller;

and when the controller judges that the temperature of the air in the air collection cavity is greater than or equal to a first temperature threshold value and the temperature of the air in the energy storage device is less than a second temperature threshold value, the energy compound utilization system works in the second working mode by controlling the fan and the control valve.

19. The control device of claim 17, further comprising a second temperature sensor electrically connected to the controller and configured to sense the temperature of the air within the energy storage device and communicate to the controller;

and when the controller judges that the temperature of the air in the air collection cavity is less than a first temperature threshold value and the temperature of the air in the energy storage device is greater than or equal to a second temperature threshold value, the energy compound utilization system works in the third working mode by controlling the fan and the control valve.

20. The control device of claim 18, further comprising a pressure sensor electrically connected to the controller and configured to detect a pressure of air within the energy storage device and communicate to the controller;

when the controller judges that the pressure of the air in the energy storage device reaches a first pressure threshold value, the energy compound utilization system is switched to the first working mode or the non-working state through controlling the fan and the control valve; and when the controller judges that the pressure of the air in the energy storage device is lower than a second pressure threshold value, the energy source compound utilization system is switched back to the second working mode until the temperature of the air in the energy storage device reaches a second temperature threshold value.