A comprehensive energy heating method and system based on wind, solar and geothermal coupling

Abstract

The embodiment of the present application discloses a comprehensive energy heating method and system based on wind-solar-geothermal coupling, wherein the shallow buried pipe of the comprehensive energy heating system based on wind-solar-geothermal coupling collects shallow geothermal heat to heat the first heat exchange medium, the first heat exchange medium is passed into the first heat exchanger, the solar collector collects solar energy to heat the second heat exchange medium, the second heat exchange medium is passed into the first heat exchanger, the second heat exchange medium heats the first heat exchange medium, and after heat exchange, the first heat exchange medium is heated by the first heat pump to heat the heating return water; the medium-deep geothermal heat extraction device absorbs the medium-deep geothermal heat, and the medium-deep geothermal heat absorbed by the medium-deep geothermal heat extraction device is reheated by the second heat pump to heat the heating return water, and the heating return water after the reheating is supplied to the user. The present application utilizes solar energy, shallow geothermal heat and medium-deep geothermal heat to heat the heating return water, and the medium-deep geothermal heat can make up for the heat transferred to the heating return water through the first heat exchange medium when the light is insufficient, so as to ensure the continuity and stability of the new energy heating.

Description

Technical Field

[0001] The present application relates to the field of heating technology, and in particular to a comprehensive energy heating method and system based on wind, solar and geothermal coupling. Background Art

[0002] Currently, heating mainly uses coal, which will produce a lot of carbon dioxide emissions. In order to reduce the carbon dioxide emissions caused by heating, it is necessary to vigorously develop new energy such as wind power and photovoltaics, and promote new energy heating.

[0003] Many areas in my country have good conditions for utilizing solar energy and wind energy, which can convert solar energy into thermal energy for heating, or convert solar energy and wind energy into electrical energy, and then convert them into thermal energy for heating through electric heating devices. However, solar energy and wind energy are discontinuous and unstable, which makes it impossible to achieve continuity and stability in heating.

[0004] Application Contents

[0005] This application proposes a comprehensive energy heating system based on wind, solar, and geothermal coupling to achieve continuity and stability of new energy heating. This application also proposes a comprehensive energy heating method based on wind, solar, and geothermal coupling.

[0006] In order to achieve the above objectives, the present application provides a comprehensive energy heating system based on wind, solar and geothermal coupling, including:

[0007] A shallow buried pipe, wherein the first heat exchange medium in the shallow buried pipe can absorb shallow geothermal heat;

[0008] A solar thermal collector, wherein the second heat exchange medium in the solar thermal collector is capable of absorbing solar energy;

[0009] A first heat exchanger is connected to the solar collector and the shallow buried pipe, and is used to achieve heat exchange between the first heat exchange medium and the second heat exchange medium. The first heat exchange medium after heat exchange is used to heat heating return water;

[0010] A medium-deep geothermal heat extraction device, wherein the third heat exchange medium in the medium-deep geothermal heat extraction device is used to absorb medium-deep geothermal heat, and the medium-deep geothermal heat extraction device heats the heating return water.

[0011] Preferably, the above-mentioned comprehensive energy heating system based on wind, solar and geothermal coupling also includes a low-grade heat source power generation device.

[0012] The low-grade heat source power generation device is connected to the medium-deep geothermal heat extraction device through a second heat exchanger, and the low-grade heat source power generation device is used to convert the medium-deep geothermal heat into electrical energy.

[0013] Preferably, the above-mentioned integrated energy heating system based on wind, solar, and geothermal coupling also includes an electric heating device, which is used to heat the heating return water.

[0014] Preferably, the above-mentioned integrated energy heating system based on wind, solar, and geothermal coupling also includes a wind power generation device, which is connected to the electric heating device, and the wind power generation device is used to supply the generated electric energy to the electric heating device.

[0015] Preferably, the above-mentioned integrated energy heating system based on wind, solar and geothermal coupling also includes a photovoltaic power generation device, which is connected to the electric heating device, and the photovoltaic power generation device is used to supply the generated electric energy to the electric heating device.

[0016] Preferably, the above-mentioned integrated energy heating system based on wind, solar and geothermal coupling also includes a battery, which can be connected to the wind power generation device and / or the photovoltaic power generation device to store the electric energy generated by the wind power generation device and / or the photovoltaic power generation device, and the battery can be connected to the electric heating device.

[0017] Preferably, the above-mentioned integrated energy heating system based on wind, solar, and geothermal coupling also includes a peak heater, which is used to deliver the heating return water to users.

[0018] Preferably, in the above-mentioned integrated energy heating system based on wind-solar-geothermal coupling, the shallow buried pipe heats the heating return water through a first heat pump.

[0019] Preferably, in the above-mentioned integrated energy heating system based on wind-solar-geothermal coupling, the medium-deep geothermal heat extraction device heats the heating return water through a second heat pump.

[0020] Preferably, in the above-mentioned integrated energy heating system based on wind-solar-geothermal coupling, the first heat pump and the second heat pump are electric heat pumps or gas heat pumps.

[0021] A comprehensive energy heating method based on wind, solar, and geothermal coupling, using the comprehensive energy heating system based on wind, solar, and geothermal coupling recorded in the above scheme to provide heating, comprising the steps of:

[0022] S1, a first heat exchange medium that absorbs shallow geothermal heat heats heating return water, and a second heat exchange medium that absorbs solar energy heats the first heat exchange medium;

[0023] S2. A mid-deep geothermal heat extraction device that absorbs mid-deep geothermal heat heats the heating return water.

[0024] Preferably, in the above-mentioned comprehensive energy heating method based on wind, solar and geothermal coupling, the following steps are also included:

[0025] S3, the low-grade heat source power generation device converts the medium-deep geothermal energy into electrical energy through the second heat exchanger.

[0026] Preferably, in the above-mentioned comprehensive energy heating method based on wind, solar and geothermal coupling, the following steps are also included:

[0027] S4. The electric heating device heats the heating return water.

[0028] Preferably, in the above-mentioned integrated energy heating method based on wind-solar-geothermal coupling, in step S4, the electric heating device is powered by a wind power generation device, a photovoltaic power generation device and / or a battery, and the battery is charged by the wind power generation device and / or the photovoltaic power generation device.

[0029] The embodiment of the present application provides a comprehensive energy heating system based on wind-solar-geothermal coupling. The shallow buried pipe collects shallow geothermal heat to heat the first heat exchange medium in the buried pipe. The first heat exchange medium is passed into the first heat exchanger. At the same time, the solar collector collects solar energy to heat the second heat exchange medium. The second heat exchange medium is passed into the first heat exchanger. The second heat exchange medium heats the first heat exchange medium. After heat exchange, the first heat exchange medium is heated by the first heat pump for heating return water. The medium-deep geothermal heat extraction device adopts the technology of taking heat without taking water, absorbs medium-deep geothermal heat, and the medium-deep geothermal heat extraction device that absorbs medium-deep geothermal heat reheats the heating return water through the second heat pump. The heating return water after reheating is supplied to users. The comprehensive energy heating system based on wind-solar-geothermal coupling disclosed in the present application utilizes a combination of solar energy, shallow geothermal heat and medium-deep geothermal heat to heat the heating return water. The medium-deep geothermal heat can make up for the heat transferred to the heating return water through the first heat exchange medium when the light is insufficient, thereby ensuring the continuity and stability of the new energy heating.

[0030] The present application also discloses a comprehensive energy heating method based on wind-solar-geothermal coupling, which uses the comprehensive energy heating system based on wind-solar-geothermal coupling disclosed in the above scheme to provide heating. Since the comprehensive energy heating system based on wind-solar-geothermal coupling has the above technical effects, the comprehensive energy heating method based on wind-solar-geothermal coupling using the comprehensive energy heating system based on wind-solar-geothermal coupling also has the same technical effects, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without creative work, and the present application can also be applied to other similar scenarios based on the provided drawings. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0032] Figure 1 This is a structural diagram of the comprehensive energy heating system based on wind, solar and geothermal coupling of the present application;

[0033] Figure 2 It is a flow chart of the comprehensive energy heating method based on wind, solar and geothermal coupling of the present application;

[0034] Figure 3 This is a flow chart of the integrated energy heating method based on wind, solar and geothermal coupling of the present application.

[0035] The accompanying drawings are as follows:

[0036] 1. Shallow buried pipes, 2. First heat exchanger, 3. Solar collector, 4. First heat pump, 5. Medium and deep geothermal heat extraction device, 6. Second heat exchanger, 7. Low-grade heat source power generation device, 8. Second heat pump, 9. Photovoltaic power generation device, 10. Wind power generation device, 11. Battery, 12. Electric heating device, 13. Peak heater. DETAILED DESCRIPTION

[0037] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It will be understood that the specific embodiments described herein are only used to explain the related application, rather than to limit the application. The described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0038] It should be noted that, for the convenience of description, only the parts related to the relevant application are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other.

[0039] It should be understood that the "device", "device", "unit" and / or "module" used in this application is a method for distinguishing different components, elements, parts, portions or assemblies at different levels. However, if other words can achieve the same purpose, the word can be replaced by other expressions.

[0040] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.

[0041] In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0042] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0043] Flowcharts are used in this application to illustrate the operations performed by the apparatus according to the embodiments of the application. It should be understood that the preceding or following operations are not necessarily performed precisely in order. On the contrary, the various steps may be processed in reverse order or simultaneously. At the same time, other operations may also be added to these processes, or one or more operations may be removed from these processes.

[0044] See also Figure 1-Figure 3 .

[0045] Some embodiments of the present application disclose an integrated energy heating system based on wind-solar-geothermal coupling, including a shallow buried pipe 1, a solar collector 3, a first heat exchanger 2 and a mid-deep geothermal heat extraction device 5.

[0046] Wherein, the first heat exchange medium in the shallow buried pipe 1 absorbs shallow geothermal heat for heating;

[0047] The second heat exchange medium in the solar collector 3 absorbs solar energy for heating;

[0048] The first heat exchanger 2 is connected with the solar collector 3 and the shallow buried pipe 1, and is used to realize heat exchange between the first heat exchange medium and the second heat exchange medium. The first heat exchange medium after heat exchange is used to heat the heating return water;

[0049] The third heat exchange medium in the medium-deep geothermal heat extraction device 5 can absorb medium-deep geothermal heat, and the medium-deep geothermal heat absorbed by the medium-deep geothermal heat extraction device 5 is used to heat the heating return water.

[0050] After the first heat exchange medium in the shallow buried pipe 1 absorbs shallow geothermal energy, it enters the first heat exchanger 2. At the same time, after the second heat exchange medium in the solar collector 3 absorbs solar energy, it also enters the first heat exchanger 2. The temperature of the first heat exchange medium heated by shallow geothermal energy is relatively low. The second heat exchange medium in the solar collector 3 needs to be heated by the first heat exchanger 2 to heat the first heat exchange medium. The first heat exchange medium is heated, and the heated first heat exchange medium heats the heating return water.

[0051] Shallow geothermal refers to thermal energy resources with a temperature below 25°C within a depth range below the surface (generally from the constant temperature zone to a burial depth of 200m).

[0052] The energy sources of shallow geothermal heat are mainly solar radiation and the earth's gradient warming. Therefore, shallow geothermal heat will be affected by light to a certain extent. At the same time, the heating of the second heat exchange medium by the solar collector 3 will also be affected by light.

[0053] No matter the first heat exchange medium absorbs shallow geothermal heat or the second heat exchange medium absorbs solar energy, both will be affected by sunlight.

[0054] In order to reduce the influence of sunlight on the heating effect of heating return water, the comprehensive energy heating system based on wind, solar and geothermal coupling disclosed in the present application also includes a medium-deep geothermal heat extraction device 5. The third heat exchange medium in the medium-deep geothermal heat extraction device 5 can absorb medium-deep geothermal heat, and the medium-deep geothermal heat extraction device 5 can perform secondary heating on the heating return water.

[0055] The heat of the mid-deep geothermal is higher than the heat of the first heat exchange medium after heat exchange, and can perform secondary heating on the heating return water.

[0056] Medium- and deep-layer geothermal energy is renewable thermal energy stored in the earth's interior. It is generally distributed around the edges of tectonic plates and originates from the earth's molten magma and the decay of radioactive substances. Therefore, medium- and deep-layer geothermal energy is not affected by external environments such as light and can provide stable thermal energy.

[0057] The comprehensive energy heating system based on wind, solar and geothermal coupling disclosed in the present application comprises a shallow buried pipe 1 collecting shallow geothermal heat to heat a first heat exchange medium in the buried pipe, the first heat exchange medium is passed into a first heat exchanger 2, and at the same time, a solar collector 3 collects solar energy to heat a second heat exchange medium, the second heat exchange medium is passed into the first heat exchanger 2, the second heat exchange medium heats the first heat exchange medium, and after heat exchange, the first heat exchange medium is heated by a first heat pump 4 to heat the heating return water;

[0058] The medium-deep geothermal heat extraction device 5 adopts the technology of extracting heat without taking water to absorb medium-deep geothermal heat. A part of the medium-deep geothermal heat absorbed by the medium-deep geothermal heat extraction device 5 is reheated through the second heat pump 8 to provide heating return water, and the heating return water after reheating is supplied to users.

[0059] The integrated energy heating system based on wind, solar and geothermal coupling disclosed in the present application utilizes a combination of solar energy, shallow geothermal energy and medium and deep geothermal energy to heat the heating return water. The medium and deep geothermal energy can make up for the heat transferred to the heating return water through the first heat exchange medium when there is insufficient light, thereby ensuring the continuity and stability of new energy heating.

[0060] The comprehensive energy heating system based on wind, solar and geothermal coupling disclosed in the present application also includes a low-grade heat source power generation device 7.

[0061] When the heating load is low, the medium-deep geothermal heat absorbed by the medium-deep geothermal heat extraction device 5 cannot be fully used to heat the heating return water. At this time, the low-grade heat source power generation device 7 is connected to the medium-deep geothermal heat extraction device 5 through the second heat exchanger 6. The low-grade heat source power generation device 7 is used to convert another part of the heat of the medium-deep geothermal heat absorbed by the medium-deep geothermal heat extraction device 5 into electrical energy, thereby improving the utilization rate of the medium-deep geothermal heat.

[0062] When the heating load is high, the medium-deep geothermal heat absorbed by the medium-deep geothermal heat extraction device 5 can be used entirely for heating heating return water. At this time, the low-grade heat source power generation device 7 does not convert the medium-deep geothermal heat into electrical energy or reduces the amount of medium-deep geothermal heat converted into electrical energy.

[0063] The medium-deep geothermal heat extraction device 5 is a medium-deep geothermal heat extraction device 5 commonly used in the prior art, and will not be described in detail here.

[0064] In some embodiments of the present application, the low-grade heat source power generation device 7 is a screw expansion generator.

[0065] The first heat exchange medium, the second heat exchange medium and the third heat exchange medium can be the same heat exchange medium or different heat exchange mediums. Preferably, the first heat exchange medium and the second heat exchange medium are water.

[0066] The comprehensive energy heating system based on wind, solar and geothermal coupling disclosed in the present application also includes an electric heating device 12, which is used to heat the heating return water.

[0067] In this embodiment, the heating return water is heated for the first time by the first heat exchange medium after heat exchange, the heating return water is heated for the second time by the medium-deep geothermal heat extraction device 5, and the heating return water is heated for the third time by the electric heating device 12 to meet the heating demand.

[0068] When the heating load increases, the electric heating device 12 is required to heat the heating return water to further enhance the stability and continuity of the heating.

[0069] The electric heating device can be connected to a power generation device, and the electric energy generated by the power generation device can be directly used in the electric heating device.

[0070] In some embodiments of the present application, the electric heating device is an electric heating furnace.

[0071] Preferably, the heating return water is delivered to the user through the peak heater 13. In the north where the heating heat load is large, the peak heater 13 is used to achieve the heating quality in the area with large heating load.

[0072] The integrated energy heating system based on wind, solar and geothermal coupling disclosed in the present application heats the heating return water through shallow geothermal energy, medium and deep geothermal energy, solar energy and electric energy. No carbon dioxide tower will be produced during the heating process of the heating return water, which can effectively reduce the carbon dioxide emissions caused by heating.

[0073] In addition, electricity can be generated by wind power or solar power, replacing coal power generation, further reducing carbon dioxide emissions from heating, and utilizing wind and solar energy at the same time.

[0074] The electric heating device 12 can be connected to the mains electricity, and can also be connected to the low-grade heat source power generation device 7.

[0075] In some embodiments of the present application, the integrated energy heating system based on wind, solar and geothermal coupling also includes a wind power generation device 10, which is connected to an electric heating device to supply electric energy converted from wind energy to the electric heating device 12.

[0076] Wind energy is the kinetic energy generated by the flow of air on the earth's surface and is a clean energy.

[0077] The wind power generation device 10 involved in the present application is a wind power generation device 10 commonly used in the prior art and will not be described in detail herein.

[0078] In some embodiments of the present application, the integrated energy heating system based on wind, solar and geothermal coupling also includes a photovoltaic power generation device 9, which is connected to the electric heating device 12. The photovoltaic power generation device 9 is used to supply the electric heating device 12 with electrical energy converted from solar energy.

[0079] The photovoltaic power generation device 9 involved in the present application is a wind power generation device 10 commonly used in the prior art, which will not be described in detail here.

[0080] The integrated energy heating system based on wind, solar and geothermal coupling may have only a wind power generation device 10 , only a photovoltaic power generation device 9 , or both a wind power generation device 10 and a photovoltaic power generation device 9 .

[0081] The integrated energy heating system based on wind, solar and geothermal coupling disclosed in the present application also includes a battery 11, which can store the electric energy generated by the wind power generation device 10 and the photovoltaic power generation device 9. At night when the photovoltaic power generation device 9 does not generate electric energy and / or the wind power generation device 10 does not generate electric energy due to low wind speed, the battery 11 can supply power to the electric heating device 12 to meet the electricity demand of the electric heating device 12.

[0082] The comprehensive energy heating system based on wind-solar-geothermal coupling disclosed in the present application can realize the comprehensive utilization of solar energy, wind energy and geothermal energy, wherein solar energy can not only be used to heat the second heat exchange medium, but also can be used to generate electricity.

[0083] The coupling of geothermal energy with solar energy and wind energy can provide heating through the coordinated complementarity of different forms of energy, which can enhance the clean heating capability of the integrated energy heating system based on the coupling of wind, solar and geothermal energy. In combination with the storage battery 11 and the low-grade heat source power generation device 7, the flexibility of the heating of the integrated energy heating system based on the coupling of wind, solar and geothermal energy can be enhanced to create a zero-carbon heating system.

[0084] Preferably, the shallow buried pipe 1 heats the heating return water through the first heat pump 4;

[0085] The mid-deep geothermal heat extraction device 5 heats the heating return water through the second heat pump 8 .

[0086] The first heat pump 4 and the second heat pump 8 can be electric heat pumps or gas heat pumps, wherein the electric heat pump is driven by electric energy and the gas heat pump is driven by gas. In the embodiment where the first heat pump 4 and the second heat pump 8 are electric heat pumps, the power generation device can supply power to the first heat pump 4 and the second heat pump 8, the wind power generation device 10 can supply power to the first heat pump 4 and the second heat pump 8, and the photovoltaic power generation device 9 can supply power to the first heat pump 4 and the second heat pump 8.

[0087] At the beginning and end of heating, the heating load of the integrated energy heating system based on wind, solar and geothermal coupling is low, and shallow geothermal, medium and deep geothermal and solar energy are used to heat the heating return water;

[0088] When the heating load increases, an electric heating device 12 is added to improve the heating capacity;

[0089] At night, when the photovoltaic power generation device 9 does not generate electricity and / or the wind power generation device 10 does not generate electricity due to low wind force, the storage battery 11 can supply power to the electric heating device 12;

[0090] When the heating load further increases, the low-grade heat source power generation device 7 is shut down to further enhance the heating capacity of the integrated energy heating system based on wind, solar and geothermal coupling.

[0091] The present application also discloses an integrated energy heating method based on wind, solar, and geothermal coupling, which adopts the integrated energy heating system based on wind, solar, and geothermal coupling disclosed in the above scheme for heating. Since the integrated energy heating system based on wind, solar, and geothermal coupling has the above technical effects, the integrated energy heating method based on wind, solar, and geothermal coupling using the integrated energy heating system based on wind, solar, and geothermal coupling also has the same technical effects, which will not be repeated here.

[0092] The comprehensive energy heating method based on wind, solar and geothermal coupling disclosed in this application includes:

[0093] S1, a first heat exchange medium that absorbs shallow geothermal heat heats heating return water, and a second heat exchange medium that absorbs solar energy heats the first heat exchange medium;

[0094] S2. The mid-deep geothermal heat extraction device 5 that absorbs mid-deep geothermal heat heats the heating return water.

[0095] The first heat exchange medium in the shallow buried pipe 1 absorbs shallow geothermal heat for heating. The temperature of the first heat exchange medium heated by shallow geothermal heat is relatively low, and it needs to be heated by the second heat exchange medium heated by solar energy in the solar collector 3 before heating the heating return water.

[0096] Medium and deep geothermal energy can provide more heat to the heating return water to meet the heating load.

[0097] No matter the first heat exchange medium absorbs shallow geothermal heat or the second heat exchange medium absorbs solar energy, both will be affected by sunlight.

[0098] In order to reduce the influence of sunlight on the heating effect of heating return water, the present application uses the mid-deep geothermal heat extraction device 5 to supplement the heat of heating return water. Mid-deep geothermal is renewable heat energy stored in the earth's interior, generally distributed along the edge of tectonic plates, originating from the earth's molten magma and the decay of radioactive substances. Therefore, mid-deep geothermal is not affected by external environments such as sunlight and can provide stable heat energy.

[0099] The present application heats the heating return water through a combination of solar energy, shallow geothermal energy and medium-deep geothermal energy. The medium-deep geothermal energy can make up for the heat transferred to the heating return water through the first heat exchange medium when there is insufficient light, thereby ensuring the continuity and stability of new energy heating.

[0100] The comprehensive energy heating method based on wind, solar and geothermal coupling disclosed in the present application also includes the following steps:

[0101] S3. The low-grade heat source power generation device 7 converts the middle-deep geothermal energy absorbed by the middle-deep geothermal heat extraction device 5 into electrical energy through the second heat exchanger 6.

[0102] This step occurs at the beginning or end of heating; when the heating load is high, the above step is not performed.

[0103] This step can improve the utilization rate of medium and deep geothermal energy.

[0104] The comprehensive energy heating method based on wind, solar and geothermal coupling disclosed in the present application also includes the following steps:

[0105] S4. The electric heating device 12 heats the heating return water.

[0106] When the heating load increases, the electric heating device 12 is required to heat the heating return water to further enhance the stability and continuity of the heating.

[0107] The electric heating device 12 is powered by the wind power generation device 10 , the photovoltaic power generation device 9 and / or the storage battery 11 , and the storage battery 11 is charged by the wind power generation device 10 and / or the photovoltaic power generation device 9 .

[0108] The electric heating device 12 may include only the wind power generation device 10 , only the photovoltaic power generation device 9 , or both the wind power generation device 10 and the photovoltaic power generation device 9 .

[0109] The battery 11 can store the electric energy generated by the wind power generation device 10 and the photovoltaic power generation device 9. At night when the photovoltaic power generation device 9 does not generate electric energy and / or the wind power generation device 10 does not generate electric energy due to low wind speed, the battery 11 can supply power to the electric heating device 12 to meet the electricity demand of the electric heating device 12.

[0110] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (apparatus), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0111] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1A function specified in one or more boxes.

[0112] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0113] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0114] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0115] Computer readable media include permanent and non-permanent, removable and non-removable media, and can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0116] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, devices or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0117] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used, and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. The scope of application involved in the present application is not limited to the technical solution formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned application concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in this application (but not limited to) to form a technical solution.

Claims

1. A comprehensive energy heating system based on wind, solar and geothermal coupling, characterized in that: include: A shallow buried pipe (1), wherein the first heat exchange medium in the shallow buried pipe (1) is capable of absorbing shallow geothermal heat; A solar thermal collector (3), wherein a second heat exchange medium in the solar thermal collector (3) is capable of absorbing solar energy; A first heat exchanger (2) is connected to the solar collector (3) and the shallow buried pipe (1) and is used to achieve heat exchange between the first heat exchange medium and the second heat exchange medium, and the first heat exchange medium after heat exchange is used to heat heating return water; A medium-deep geothermal heat extraction device (5), wherein the third heat exchange medium in the medium-deep geothermal heat extraction device (5) is capable of absorbing medium-deep geothermal heat, and the medium-deep geothermal heat extraction device (5) heats the heating return water; It also includes a low-grade heat source power generation device (7), The low-grade heat source power generation device (7) is connected to the medium-deep geothermal heat extraction device (5) via a second heat exchanger (6), and the low-grade heat source power generation device (7) is used to convert the medium-deep geothermal heat into electrical energy; It also includes an electric heating device (12), wherein the electric heating device (12) is used to heat the heating return water; It also includes a wind power generation device (10), the wind power generation device (10) is connected to the electric heating device (12), and the wind power generation device (10) is used to supply the generated electric energy to the electric heating device (12); It also includes a photovoltaic power generation device (9), the photovoltaic power generation device (9) is connected to the electric heating device (12), and the photovoltaic power generation device (9) is used to supply the generated electric energy to the electric heating device (12); It also includes a storage battery (11), which can be connected to the wind power generation device (10) and / or the photovoltaic power generation device (9) to store the electric energy generated by the wind power generation device (10) and / or the photovoltaic power generation device (9), and the storage battery (11) can be connected to the electric heating device (12); It also includes a peak heater (13), and the peak heater (13) is used to deliver the heating return water to the user; The shallow buried pipe (1) heats the heating return water through a first heat pump (4); The mid-deep geothermal heat extraction device (5) heats the heating return water via a second heat pump (8).

2. The integrated energy heating system based on wind, solar and geothermal coupling according to claim 1 is characterized in that: The first heat pump (4) and the second heat pump (8) are electric heat pumps or gas heat pumps.

3. A comprehensive energy heating method based on wind, solar and geothermal coupling, characterized in that: The integrated energy heating system based on wind, solar and geothermal coupling as described in claim 1 is used for heating, comprising the steps of: S1, a first heat exchange medium that absorbs shallow geothermal heat heats heating return water, and a second heat exchange medium that absorbs solar energy heats the first heat exchange medium; S2. A mid-deep geothermal heat extraction device (5) that absorbs mid-deep geothermal heat heats the heating return water.

4. The comprehensive energy heating method based on wind, solar and geothermal coupling according to claim 3 is characterized in that: Also includes the steps: S3. The low-grade heat source power generation device (7) converts the medium-deep geothermal energy into electrical energy through the second heat exchanger (6).

5. The comprehensive energy heating method based on wind, solar and geothermal coupling according to claim 3 is characterized in that: Also includes the steps: S4. The electric heating device (12) heats the heating return water.

6. The comprehensive energy heating method based on wind, solar and geothermal coupling according to claim 5 is characterized in that: In step S4, the electric heating device (12) is powered by a wind power generation device (10), a photovoltaic power generation device (9) and / or a storage battery (11). The storage battery (11) is charged by the wind power generation device (10) and / or the photovoltaic power generation device (9).

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