Ground source heat pump system
Through the ground source heat pump system, the thermal acoustic effect and inert gas heat transfer media are used to solve the problems of low energy efficiency and environmental protection of traditional steam compression heat pumps, achieving high efficiency, energy saving and wide application.
Patent Information
- Application Number
- CN202510614798.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2025-08-19
AI Technical Summary
Traditional steam compression heat pumps have low energy efficiency, small scope of application, and have environmental protection problems.
The ground source heat pump system is adopted, including a thermoacoustic engine, a thermoacoustic refrigerator and a resonant tube, and uses inert gas as a heat transfer medium to achieve efficient energy saving through thermal acoustic effects, and provides stable heating under extreme climate conditions.
It improves energy efficiency, reduces energy consumption and greenhouse gas emissions, has a wide range of applications, and is suitable for various climatic conditions.
Smart Images
Figure CN120506739A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of heat pumps, and in particular to a ground source heat pump system. Background Art
[0002] A heat pump is a device that transfers heat energy from a low-grade heat source to a higher-grade heat source. It's a new energy technology attracting significant attention worldwide. Heat pumps typically extract low-grade heat energy from natural sources like air, water, or soil, generate electrical work, and then provide usable, high-grade heat energy.
[0003] Traditional vapor compression heat pumps, due to the presence of refrigerants, are environmentally unfriendly and highly hazardous. Furthermore, the inherent nature of vapor compression leads to low energy efficiency, a narrow operating temperature range, and difficulty extracting and releasing heat under extreme conditions.
[0004] Accordingly, this field requires a new technical solution to solve the above problems. Summary of the Invention
[0005] In order to solve at least one of the above problems in the prior art, that is, to solve the problems of low energy efficiency and limited application range of traditional steam compression heat pumps, the present application provides a ground source heat pump system, the ground source heat pump system comprising:
[0006] A heat pump device, comprising a thermoacoustic engine, a thermoacoustic refrigerator, and a resonance tube, wherein the thermoacoustic engine and the thermoacoustic refrigerator are both disposed within the resonance tube, and an output end of the thermoacoustic engine is communicated with an input end of the thermoacoustic refrigerator, the thermoacoustic engine having a first regenerator, a first room temperature end heat exchanger, and a hot end heat exchanger, the thermoacoustic refrigerator having a second regenerator, a second room temperature end heat exchanger, and a cold end heat exchanger, and the hot end heat exchanger and the cold end heat exchanger are both communicated with a ground source circulation;
[0007] an intermediate heat exchanger having a first heat exchange flow path and a second heat exchange flow path for heat exchange with each other, wherein the first room temperature end heat exchanger and the second room temperature end heat exchanger are both in cyclic communication with the first heat exchange flow path;
[0008] A hot end heat exchanger is used, and the hot end heat exchanger is in circulation communication with the second heat exchange flow path.
[0009] Compared with traditional heat pumps, the ground source heat pump system of the present application has the characteristics of high efficiency, energy saving, environmental protection, and wide application range. Specifically, since the thermoacoustic effect does not require a compressor and refrigerant, the studio of this system can reduce energy consumption and operating costs. In addition, the thermoacoustic effect uses inert gas as a heat transfer medium, avoiding the emission of greenhouse gases and meeting environmental protection requirements. Furthermore, the thermoacoustic effect is less affected by the ambient temperature during operation, so this system can provide stable and efficient heating guarantees under various climatic conditions, and is particularly suitable for use under extreme climatic conditions.
[0010] In the preferred technical solution of the above-mentioned ground-source heat pump system, the resonance tube is annular, and the output end of the thermoacoustic refrigerator is connected to the input end of the thermoacoustic engine.
[0011] By adopting an annular resonant tube, the heat pump device can form a self-excited oscillation system. The thermoacoustic refrigerator not only consumes the acoustic power generated by the thermoacoustic engine to generate heat, but also provides the required volume flow and phase for the thermoacoustic engine to achieve higher efficiency.
[0012] In the preferred technical solution of the above-mentioned ground source heat pump system, the heat pump device also includes a first phase adjustment mechanism and a second phase adjustment mechanism arranged in the resonance tube, the first phase adjustment mechanism is arranged between the output end of the thermoacoustic engine and the input end of the thermoacoustic refrigerator, and the second phase adjustment mechanism is arranged between the output end of the thermoacoustic refrigerator and the input end of the thermoacoustic engine.
[0013] By setting the first phase adjustment mechanism and the second phase adjustment mechanism, the acoustic impedance between the thermoacoustic engine and the thermoacoustic refrigerator can be adjusted so that the two can work simultaneously in their respective appropriate sound fields, further improving the working efficiency of the system.
[0014] In the preferred technical solution of the above-mentioned ground source heat pump system, the first phase adjustment mechanism and / or the second phase adjustment mechanism include a slender pipe, an acoustic capacitive cavity and an acoustic inductive piston.
[0015] In the preferred technical solution of the above-mentioned ground source heat pump system, one end of the second room temperature end heat exchanger is connected to one end of the first heat exchange flow path through a first water outlet pipe, and the other end of the second room temperature end heat exchanger is connected to the other end of the first heat exchange flow path through a first return water pipe. One end of the first room temperature end heat exchanger is connected to the first water outlet pipe through a second water outlet pipe, and the other end of the first room temperature end heat exchanger is connected to the first return water pipe through a second return water pipe.
[0016] In a preferred technical solution of the above-mentioned ground source heat pump system, a first water outlet pump and a second water outlet pump are provided on the first water outlet pipeline, wherein the first water outlet pump is located on the first water outlet pipeline between one end of the second room temperature end heat exchanger and one end of the second water outlet pipeline, and the second water outlet pump is located on the first water outlet pipeline between one end of the first heat exchange flow path and one end of the second water outlet pipeline; and / or
[0017] A first return water pump and a second return water pump are provided on the first return water pipeline, wherein the first return water pump is located on the first return water pipeline between the other end of the second room temperature end heat exchanger and one end of the second return water pipeline, and the second return water pump is located on the first return water pipeline between the other end of the first heat exchange flow path and one end of the second return water pipeline.
[0018] By providing a first outlet water pump and a first return water pump, the outlet water temperature of the thermoacoustic refrigerator can be adjusted to improve the thermal efficiency.
[0019] In the preferred technical solution of the above-mentioned ground source heat pump system, a water outlet flow regulating valve is provided on the first water outlet pipe, and the water outlet flow regulating valve is located on the first water outlet pipe between one end of the second room temperature end heat exchanger and one end of the second water outlet pipe; and / or
[0020] A first return water flow regulating valve and a second return water flow regulating valve are provided on the first return water pipeline. The first return water flow regulating valve is located on the first return water pipeline between the other end of the second room temperature end heat exchanger and one end of the second return water pipeline. The second return water flow regulating valve is located on the first return water pipeline between the other end of the first heat exchange flow path and one end of the second return water pipeline.
[0021] By setting the outlet flow regulating valve and the return flow regulating valve, the outlet flow and the return flow can be adjusted and the water pump can be prevented from drying out.
[0022] In the preferred technical solution of the above-mentioned ground source heat pump system, a heater is further provided between the heat-using end heat exchanger and the second heat exchange flow path.
[0023] By setting up a heater, auxiliary heating can be achieved to enhance the user experience.
[0024] In the preferred technical solution of the above-mentioned ground source heat pump system, the intermediate heat exchanger is a plate heat exchanger, a shell and tube heat exchanger or a shell and tube heat exchanger.
[0025] In the preferred technical solution of the above-mentioned ground source heat pump system, the heat-using end heat exchanger includes a heating heat exchanger and an air-cooling heat exchanger. The air-cooling heat exchanger is correspondingly provided with an indoor fan, and the heating heat exchanger and the air-cooling heat exchanger are arranged in parallel.
[0026] The heat exchanger at the hot end includes a heating heat exchanger and an air-cooling heat exchanger, which can realize indoor dual supply. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The present application is described below with reference to the accompanying drawings.
[0028] Figure 1 A system diagram of the ground source heat pump system of this application;
[0029] Figure 2 This is a schematic diagram of the heat pump device of the ground source heat pump system of the present application.
[0030] Reference Signs List
[0031] 1. Heat pump device; 11. Thermoacoustic engine; 111. First regenerator; 112. First room temperature end heat exchanger; 113. Hot end heat exchanger; 12. Thermoacoustic refrigerator; 121. Second regenerator; 122. Second room temperature end heat exchanger; 123. Cold end heat exchanger; 13. Resonance tube; 14. First phase adjustment mechanism; 15. Second phase adjustment mechanism; 161. First water outlet pipeline; 162. Second water outlet pipeline; 163. First regenerator Water pipeline; 164, second return water pipeline; 171, first outlet water pump; 172, second outlet water pump; 173, first return water pump; 174, second return water pump; 181, outlet water flow regulating valve; 182, first return water flow regulating valve; 183, second return water flow regulating valve; 2, intermediate heat exchanger; 3, heating heat exchanger; 4, air-cooled heat exchanger; 5, circulation pump; 6, heater; 7, circulation pipeline; 8, ground source. DETAILED DESCRIPTION
[0032] The preferred embodiments of the present application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application and are not intended to limit the scope of protection of the present application.
[0033] It should be noted that, in the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, in the description of this application, "plurality" refers to at least two.
[0034] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.
[0035] First refer to Figure 1 , a brief introduction is given to the ground source heat pump system of this application.
[0036] like Figure 1 As shown, to address the low energy efficiency and limited applicability of traditional vapor compression heat pumps, the ground source heat pump system of the present application includes a heat pump device 1, an intermediate heat exchanger 2, and a hot end heat exchanger. The heat pump device 1 includes a thermoacoustic engine 11, a thermoacoustic refrigerator 12, and a resonance tube 13. The thermoacoustic engine 11 and the thermoacoustic refrigerator 12 are both disposed within the resonance tube 13, and the output end of the thermoacoustic engine 11 is connected to the input end of the thermoacoustic refrigerator 12. The thermoacoustic engine 11 has a first regenerator 111, a first room temperature end heat exchanger 112, and a hot end heat exchanger 113. The thermoacoustic refrigerator 12 has a second regenerator 121, a second room temperature end heat exchanger 122, and a cold end heat exchanger 123. Both the hot end heat exchanger 113 and the cold end heat exchanger 123 are in cyclic communication with the ground source 8. The intermediate heat exchanger 2 has a first heat exchange flow path and a second heat exchange flow path for heat exchange with each other. The first room temperature end heat exchanger 112 and the second room temperature end heat exchanger 122 are both circulated in communication with the first heat exchange flow path, and the hot end heat exchanger is circulated in communication with the second heat exchange flow path.
[0037] In one specific embodiment, the hot-end heat exchanger is an air-cooled heat exchanger. When indoor heating is required, the heat pump device 1 operates, generating a temperature gradient between the first room-temperature-end heat exchanger 112 and the hot-end heat exchanger 113 within the thermoacoustic engine 11. This causes pressure oscillations in the inert gas (e.g., helium or nitrogen) filling the resonance tube 13. Thermal energy is converted into mechanical energy in the form of acoustic energy, which is then transferred to the thermoacoustic refrigerator 12 through the resonance tube 13. In the thermoacoustic refrigerator 12, acoustic work is consumed, and the generated heat is transferred from the low-temperature end of the second regenerator 121 to the high-temperature end. Subsequently, the heat in the first and second room-temperature-end heat exchangers 112, 122 is absorbed by the first refrigerant and circulated to the first heat exchange path. There, it exchanges heat with the second refrigerant in the second heat exchange path, raising the temperature of the second refrigerant. When the second refrigerant circulates to the air-cooled heat exchanger, it exchanges heat with the indoor air, achieving indoor heating.
[0038] Compared with traditional heat pumps, the ground source heat pump system of the present application has the characteristics of high efficiency, energy saving, environmental protection, and wide application range. Specifically, since the thermoacoustic effect does not require a compressor and refrigerant, the studio of this system can reduce energy consumption and operating costs. In addition, the thermoacoustic effect uses inert gas as a heat transfer medium, avoiding the emission of greenhouse gases and meeting environmental protection requirements. Furthermore, the thermoacoustic effect is less affected by the ambient temperature during operation, so this system can provide stable and efficient heating guarantees under various climatic conditions, and is particularly suitable for use under extreme climatic conditions.
[0039] The following combination Figure 1 and Figure 2, a preferred implementation of the present application is introduced.
[0040] like Figure 1 and Figure 2 As shown, in a specific embodiment, the ground source heat pump system includes a heat pump device 1, an intermediate heat exchanger 2 and a heat-using end heat exchanger.
[0041] like Figure 2 As shown, the heat pump device 1 includes a thermoacoustic engine 11, a thermoacoustic refrigerator 12, a resonance tube 13, a first phase adjustment mechanism 14, and a second phase adjustment mechanism 15. The resonance tube 13 is annular, and the thermoacoustic engine 11, the thermoacoustic refrigerator 12, the first phase adjustment mechanism 14, and the second phase adjustment mechanism 15 are all disposed within the resonance tube 13. The output end of the thermoacoustic engine 11 is connected to the input end of the thermoacoustic refrigerator 12, and the output end of the thermoacoustic refrigerator 12 is connected to the input end of the thermoacoustic engine 11. The first phase adjustment mechanism 14 is located between the output end of the thermoacoustic engine 11 and the input end of the thermoacoustic refrigerator 12, and the second phase adjustment mechanism 15 is located between the output end of the thermoacoustic refrigerator 12 and the input end of the thermoacoustic engine 11.
[0042] The thermoacoustic engine 11 includes a first regenerator 111, a first room temperature end heat exchanger 112, and a hot end heat exchanger 113. The thermoacoustic engine 11 can be driven directly by temperature difference, or can be started by an auxiliary device such as an acoustic wave injector to achieve a thermoacoustic effect. The above two driving methods are well known in the art and will not be described in detail in this application. When the thermoacoustic engine 11 is working, each gas micro-cluster in the first regenerator 111 undergoes a complete thermoacoustic power cycle process including compression, heat release, expansion, and heat absorption. First, the gas micro-cluster moves toward the high temperature side while being compressed, and the pressure increases; secondly, the gas micro-cluster temperature is lower than the regenerator temperature and then absorbs heat from the regenerator, the pressure and temperature both reach the maximum, and the volume reaches the maximum compression; thirdly, the gas micro-cluster moves toward the room temperature end, while the volume expands to do work externally, and the pressure decreases; finally, the gas micro-cluster releases heat to the regenerator, the pressure and temperature both reach the minimum, and the volume reaches the maximum expansion. This cycle continues. Numerous gas microclusters, through relay-type heat transfer and synergistic action, gradually convert the heat input by the hot-end heat exchanger 113 into acoustic work, and the heat that cannot be converted is discharged to the ambient heat source through the first room-temperature heat exchanger. In this application, the heat input by the hot-end heat exchanger 113 comes from the ground source 8, and the first room-temperature heat exchanger transfers the heat to the first heat exchange flow path of the intermediate heat exchanger 2. The hot-end heat exchanger 113 circulates with the ground source 8 through a water pump and a pipeline to obtain ground source energy. The present application does not limit the ground source 8, which can be any type of ground source energy in soil, groundwater, surface water, low-temperature geothermal water, and tail water.
[0043] The thermoacoustic refrigerator 12 includes a second regenerator 121, a second room-temperature heat exchanger 122, and a cold-end heat exchanger 123. The acoustic power generated by the thermoacoustic engine 11 is transferred to the thermoacoustic refrigerator 12 through the resonance tube 13, creating an acoustic cooling effect within the refrigerator 12. Within the refrigerator 12, each gas cluster undergoes a complete acoustic cooling cycle, including compression, heat release, expansion, and heat absorption. First, the gas cluster moves toward the second room-temperature heat exchanger 122, where its temperature rises and its pressure increases. Second, the gas cluster's temperature exceeds that of the second regenerator 121, releasing heat to the second regenerator 121. Third, the gas cluster moves toward the cold-end heat exchanger 123, where its temperature drops and its pressure decreases. Finally, the gas cluster's temperature drops below that of the second regenerator 121, where it absorbs heat from the second regenerator 121. This cycle continues. Through the consumption of acoustic energy, numerous gas microclusters transfer heat to each other in a relay-like manner, gradually transferring heat from the cold-end heat exchanger 123 of the second regenerator 121 to the second room-temperature heat exchanger 122. In this application, the cold-end heat exchanger 123 exchanges heat with the ground source energy, and the second room-temperature heat exchanger transfers heat to the first heat exchange flow path of the intermediate heat exchanger 2. The cold-end heat exchanger 123 circulates with the ground source 8 via a water pump and pipelines to achieve ground source energy acquisition.
[0044] The first phase adjustment mechanism 14 and the second phase adjustment mechanism 15 are mainly used to adjust the acoustic impedance between the thermoacoustic engine 11 and the thermoacoustic refrigerator 12, so that the two can work simultaneously in their respective appropriate sound fields, thereby improving the overall efficiency of the system. Specifically, the first phase adjustment mechanism 14 and the second phase adjustment mechanism 15 in this application both include a slender pipe, an acoustic capacitive cavity and an acoustic inductive piston. Among them, the acoustic capacitive cavity is used to stabilize the sound field, the acoustic inductive piston is used to adjust the frequency, and the slender pipe serves as a sound wave propagation medium, wherein the acoustic inductive piston can use a solid piston or a liquid piston. The specific layout and setting of the slender pipe, the acoustic capacitive cavity and the acoustic inductive piston in the first phase adjustment mechanism 14 and the second phase adjustment mechanism 15 are conventional technologies in the field and will not be repeated in this application. It should be noted that although the first phase adjustment mechanism 14 and the second phase adjustment mechanism 15 in the present application both include a slender pipe, an acoustic capacitive cavity and an acoustic inductive piston, this does not mean that the two are set up in exactly the same way. Those skilled in the art can understand that based on the different acoustic impedance requirements of the thermoacoustic engine 11 and the thermoacoustic refrigerator 12, the specific setting details of the first phase adjustment mechanism 14 and the second phase adjustment mechanism 15 may be different, such as the cross-sectional area and length of the slender pipe, the size of the acoustic capacitive cavity, the stroke of the acoustic inductive piston, etc. Those skilled in the art can make adjustments based on specific needs.
[0045] Return to see Figure 1The intermediate heat exchanger 2 is a double-tube heat exchanger having a first heat exchange path and a second heat exchange path capable of exchanging heat with each other. The first heat exchange path is in circulation with both the first and second room-temperature-end heat exchangers 112, 122, while the second heat exchange path is in circulation with the heat-using end heat exchanger. Specifically, one end of the second room-temperature-end heat exchanger 122 is in communication with one end of the first heat exchange path via a first outlet pipe 161, and the other end of the second room-temperature-end heat exchanger 122 is in communication with the other end of the first heat exchange path via a first return pipe 163. One end of the first room-temperature-end heat exchanger 112 is in communication with the first outlet pipe 161 via the second outlet pipe 162, and the other end of the first room-temperature-end heat exchanger 112 is in communication with the first return pipe 163 via a second return pipe 164.
[0046] The first outlet water pipeline 161 is provided with a first outlet water pump 171 and a second outlet water pump 172. The first outlet water pump 171 is located on the first outlet water pipeline 161 between one end of the second room temperature end heat exchanger 122 and one end of the second outlet water pipeline 162, and the second outlet water pump 172 is located on the first outlet water pipeline 161 between one end of the first heat exchange flow path and one end of the second outlet water pipeline 162. The first return water pipeline 163 is provided with a first return water pump 173 and a second return water pump 174. The first return water pump 173 is located on the first return water pipeline 163 between the other end of the second room temperature end heat exchanger 122 and one end of the second return water pipeline 164, and the second return water pump 174 is located on the first return water pipeline 163 between the other end of the first heat exchange flow path and one end of the second return water pipeline 164. The first water outlet pipe 161 , the first water return pipe 163 , the second water outlet pipe 162 and the second water return pipe 164 are filled with a first coolant, which may be water in the present application.
[0047] The first water outlet pipeline 161 is provided with an outlet flow regulating valve 181, which is located on the first water outlet pipeline 161 between one end of the second room temperature end heat exchanger 122 and one end of the second water outlet pipeline 162. The first return water pipeline 163 is provided with a first return water flow regulating valve 182 and a second return water flow regulating valve 183. The first return water flow regulating valve 182 is located on the first return water pipeline 163 between the other end of the second room temperature end heat exchanger 122 and one end of the second return water pipeline 164. The second return water flow regulating valve 183 is located on the first return water pipeline 163 between the other end of the first heat exchange flow path and one end of the second return water pipeline 164.
[0048] The hot end heat exchanger in this application includes a heating heat exchanger 3 and an air-cooling heat exchanger 4. The air-cooling heat exchanger 4 is a fin heat exchanger. Two of them are provided in this application, and the two air-cooling heat exchangers 4 are arranged in parallel. Each air-cooling heat exchanger 4 is provided with an indoor fan. The heating heat exchanger 3 in this application is a floor heating coil, and multiple floor heating coils are connected in parallel through a water collector and a water distributor. The air-cooling heat exchanger 4 and the heating heat exchanger 3 are arranged in parallel through a circulation pipeline 7. The circulation pipeline 7 is connected to the second heat exchange flow path, and a circulation pump 5 is provided on the circulation pipeline 7. The circulation pipeline 7 is filled with a second refrigerant, which can be water. In other words, the second refrigerant flowing out of the second heat exchange flow path can be divided into two paths, one path enters the two air-cooling heat exchangers 4, and the other path enters the heating heat exchanger 3.
[0049] A heater 6 is also provided between the hot end heat exchanger and the second heat exchange flow path. In this application, the heater 6 is an electric heater, which is provided on the downstream side of the second heat exchange flow path. In other words, after the second refrigerant flows out of the shell and tube heat exchanger, it flows through the heater 6.
[0050] The following combination Figure 1 , a brief introduction is given to the working principle of the ground source heat pump system of this application.
[0051] like Figure 1As shown, when there is a demand for heating and / or space heating indoors, the heat pump device 1 starts operating, and the first outlet water pump 171, second outlet water pump 172, first return water pump 173, second return water pump 174, and circulation pump 5 operate. After the heat pump device 1 is started, a temperature gradient is generated between the first room temperature end heat exchanger 112 and the hot end heat exchanger 113. The inert gas (such as helium or nitrogen) in the thermoacoustic engine 11 produces pressure oscillations, and thermal energy is converted into mechanical energy in the form of acoustic energy, which is transferred to the thermoacoustic refrigerator 12 through the resonance tube 13. In the thermoacoustic refrigerator 12, acoustic work is consumed and the generated heat is transferred from the low temperature end of the second regenerator 121 to the high temperature end. The remaining acoustic work returns to the thermoacoustic engine 11 along the resonance tube 13 to participate in the next cycle. The hot end heat exchanger 113 and the cold end heat exchanger 123 exchange heat with the ground source energy cycle to dissipate heat. Driven by the first outlet water pump 171, the second outlet water pump 172, the first return water pump 173, and the second return water pump 174, the first refrigerant circulates in the first heat exchange path of the first room temperature end heat exchanger 112, the second room temperature end heat exchanger 122, and the double-tube heat exchanger. The first refrigerant transfers heat from the first room temperature end heat exchanger 112 and the second room temperature end heat exchanger 122 to the first heat exchange path. Driven by the circulation pump 5, the second refrigerant circulates between the air-cooled heat exchanger 4, the heating heat exchanger 3, and the second heat exchange path. The first refrigerant exchanges heat with the second refrigerant in the second heat exchange path in the first heat exchange path, thereby increasing the temperature of the second refrigerant. When the second refrigerant circulates to the air-cooled heat exchanger 4, it exchanges heat with the indoor air, achieving indoor heating. When the second refrigerant circulates to the floor heating coil, it dissipates heat into the room, achieving indoor heating. During operation, the flow rate of the first coolant can be adjusted by adjusting the outlet flow regulating valve 181, the first return flow regulating valve 182, and the second return flow regulating valve 183, thereby adjusting the water inlet temperature of the first heat exchange flow path. When the outlet water temperature of the second heat exchange flow path is low, the heater 6 can be turned on to provide auxiliary heating.
[0052] The above-described configuration, through the use of a ring-shaped resonant tube 13, enables the heat pump device 1 to form a self-oscillating system. The thermoacoustic refrigerator 12 not only consumes the acoustic power generated by the thermoacoustic engine 11 to generate heat, but also provides the required volume flow and phase for the thermoacoustic engine 11, achieving higher efficiency. By providing a first phase adjustment mechanism 14 and a second phase adjustment mechanism 15, the acoustic impedance between the thermoacoustic engine 11 and the thermoacoustic refrigerator 12 can be adjusted, allowing both to operate simultaneously in their respective appropriate acoustic fields, further improving the system's operating efficiency. By providing a first outlet water pump 171 and a first return water pump 173, the outlet water temperature of the thermoacoustic refrigerator 12 can be adjusted to improve thermal efficiency. By providing an outlet water flow control valve 181 and a return water flow control valve, the outlet and return water flows can be adjusted and dry-burning of the water pump can be avoided. By providing a heater 6, auxiliary heating can be achieved, enhancing the user experience. The hot-end heat exchanger includes a heating heat exchanger 3 and an air-cooling heat exchanger 4, enabling indoor combined heat supply.
[0053] It should be noted that the above preferred embodiments are only used to illustrate the principles of this application and are not intended to limit the scope of protection of this application. Without departing from the principles of this application, those skilled in the art may adjust the above settings so that this application can be applied to more specific application scenarios.
[0054] For example, in an alternative embodiment, although the above embodiment is described with the resonance tube 13 being annular (i.e., a dual traveling wave type), this is merely a preferred embodiment. In other embodiments, those skilled in the art may adjust the structure of the resonance tube 13, and such adjustment does not deviate from the principles of the present application. For example, the resonance tube 13 may also be a dual standing wave type resonance tube or a traveling standing wave hybrid type resonance tube. Of course, the operating efficiency of the above alternative embodiment will inevitably be reduced.
[0055] For example, in another alternative embodiment, although the above embodiment is described using the example of a first phase adjustment mechanism 14 and a second phase adjustment mechanism 15 disposed within the resonance tube 13, the configuration of the phase adjustment mechanisms is not limited to this. Those skilled in the art may selectively omit at least one of the phase adjustment mechanisms or adjust the specific structure of the phase adjustment mechanisms. For example, the phase adjustment mechanism may comprise only a slender tube. Of course, without a phase adjustment mechanism, device efficiency may be reduced due to incomplete acoustic impedance matching.
[0056] For example, in another alternative embodiment, the arrangement of the first outlet water pump 171, the second outlet water pump 172, the first return water pump 173, and the second return water pump 174 is not exclusive; the above arrangement is merely preferred. In other embodiments, those skilled in the art may omit any one or more of the above pumps, or change the location of any of the above pumps, as long as the modified arrangement can ensure effective circulation of the first brine.
[0057] For example, in another alternative embodiment, the setting of the outlet flow regulating valve 181, the first return water flow regulating valve 182 and the second return water flow regulating valve 183 is not necessary. Those skilled in the art can choose whether to set them based on specific needs, or those skilled in the art can selectively omit at least one of the flow regulating valves.
[0058] For another example, in another alternative embodiment, the provision of heater 6 between the hot-end heat exchanger and the second heat exchange path is merely a preferred embodiment. During specific implementations, those skilled in the art may selectively omit the provision of heater 6. Furthermore, in addition to electric heaters, other types of heaters 6, such as infrared heaters, may also be used.
[0059] For example, in another alternative embodiment, the intermediate heat exchanger 2 uses a shell and tube heat exchanger, which is only one possible embodiment. In other embodiments, the intermediate heat exchanger 2 can also be adjusted to a plate heat exchanger or a shell and tube heat exchanger, etc. This adjustment does not deviate from the principles of this application.
[0060] For example, in another alternative embodiment, although the hot-end heat exchanger is described as including both a heating heat exchanger 3 and an air-cooling heat exchanger 4, this is not intended to limit the scope of protection of this application. Those skilled in the art may adjust the hot-end heat exchanger based on specific needs. For example, the hot-end heat exchanger may include only one of the heating heat exchanger 3 and the air-cooling heat exchanger 4, or may be another type of hot water heat exchanger, such as a hot water heat exchanger for producing domestic hot water.
[0061] Of course, the above-mentioned replaceable implementations, as well as the replaceable implementations and the preferred implementations, can be used in a cross-functional manner to combine new implementations to suit more specific application scenarios.
[0062] Those skilled in the art will appreciate that although some embodiments described herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are intended to be within the scope of this application and to form different embodiments. For example, in the claims of this application, any of the claimed embodiments may be used in any combination.
[0063] Thus far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present application.
Claims
1. A ground source heat pump system, characterized in that: The ground source heat pump system comprises: A heat pump device, comprising a thermoacoustic engine, a thermoacoustic refrigerator, and a resonance tube, wherein the thermoacoustic engine and the thermoacoustic refrigerator are both disposed within the resonance tube, and an output end of the thermoacoustic engine is communicated with an input end of the thermoacoustic refrigerator, the thermoacoustic engine having a first regenerator, a first room temperature end heat exchanger, and a hot end heat exchanger, the thermoacoustic refrigerator having a second regenerator, a second room temperature end heat exchanger, and a cold end heat exchanger, and the hot end heat exchanger and the cold end heat exchanger are both communicated with a ground source circulation; an intermediate heat exchanger having a first heat exchange flow path and a second heat exchange flow path for heat exchange with each other, wherein the first room temperature end heat exchanger and the second room temperature end heat exchanger are both in cyclic communication with the first heat exchange flow path; A hot end heat exchanger is used, and the hot end heat exchanger is in circulation communication with the second heat exchange flow path.
2. The ground source heat pump system according to claim 1, characterized in that: The resonance tube is annular, and the output end of the thermoacoustic refrigerator is connected to the input end of the thermoacoustic engine.
3. The ground source heat pump system according to claim 2, characterized in that: The heat pump device also includes a first phase adjustment mechanism and a second phase adjustment mechanism arranged in the resonance tube, the first phase adjustment mechanism is arranged between the output end of the thermoacoustic engine and the input end of the thermoacoustic refrigerator, and the second phase adjustment mechanism is arranged between the output end of the thermoacoustic refrigerator and the input end of the thermoacoustic engine.
4. The ground source heat pump system according to claim 3, characterized in that: The first phase adjustment mechanism and / or the second phase adjustment mechanism includes a slender pipe, an acoustic capacitive cavity and an acoustic inductive piston.
5. The ground source heat pump system according to claim 1, characterized in that: One end of the second room temperature end heat exchanger is connected to one end of the first heat exchange path through a first water outlet pipe, and the other end of the second room temperature end heat exchanger is connected to the other end of the first heat exchange path through a first return water pipe. One end of the first room temperature end heat exchanger is connected to the first water outlet pipe through a second water outlet pipe, and the other end of the first room temperature end heat exchanger is connected to the first return water pipe through a second return water pipe.
6. The ground source heat pump system according to claim 5, characterized in that: A first outlet water pump and a second outlet water pump are provided on the first outlet water pipeline, wherein the first outlet water pump is located on the first outlet water pipeline between one end of the second room temperature end heat exchanger and one end of the second outlet water pipeline, and the second outlet water pump is located on the first outlet water pipeline between one end of the first heat exchange flow path and one end of the second outlet water pipeline; and / or A first return water pump and a second return water pump are provided on the first return water pipeline, wherein the first return water pump is located on the first return water pipeline between the other end of the second room temperature end heat exchanger and one end of the second return water pipeline, and the second return water pump is located on the first return water pipeline between the other end of the first heat exchange flow path and one end of the second return water pipeline.
7. The ground source heat pump system according to claim 5, characterized in that: A water outlet flow regulating valve is provided on the first water outlet pipeline, and the water outlet flow regulating valve is located on the first water outlet pipeline between one end of the second room temperature end heat exchanger and one end of the second water outlet pipeline; and / or A first return water flow regulating valve and a second return water flow regulating valve are provided on the first return water pipeline. The first return water flow regulating valve is located on the first return water pipeline between the other end of the second room temperature end heat exchanger and one end of the second return water pipeline. The second return water flow regulating valve is located on the first return water pipeline between the other end of the first heat exchange flow path and one end of the second return water pipeline.
8. The ground source heat pump system according to claim 1, characterized in that: A heater is further provided between the hot end heat exchanger and the second heat exchange flow path.
9. The ground source heat pump system according to claim 1, characterized in that: The intermediate heat exchanger is a plate heat exchanger, a shell and tube heat exchanger or a shell and tube heat exchanger.
10. The ground source heat pump system according to claim 1, characterized in that: The heat exchanger at the hot end includes a heating heat exchanger and an air-cooling heat exchanger. The air-cooling heat exchanger is correspondingly provided with an indoor fan. The heating heat exchanger and the air-cooling heat exchanger are arranged in parallel.