Adsorption type thermoacoustic refrigeration unit, adsorption type thermoacoustic refrigerator and method

Abstract

The invention relates to the technical field of energy conversion, and provides an adsorption type thermoacoustic refrigeration unit, an adsorption type thermoacoustic refrigerator and a method, and the refrigeration unit comprises a cooler, a heat regenerator and a hot end heat exchanger which are connected in sequence; the heat regenerator is provided with a plurality of adsorbent flow channels, and the adsorbent flow channels are provided with adsorbate gas. According to the adsorption type thermo-acoustic refrigeration unit and the adsorption type thermo-acoustic refrigerator provided by the embodiment of the invention, the multiple adsorbent flow channels are constructed in the heat regenerator, and the adsorbent flow channels in the heat regenerator are used for adsorbing and analyzing the adsorbate gas to strengthen gas-solid heat transfer, so that thermo-acoustic refrigeration circulation is strengthened, and the refrigeration efficiency and the energy density are improved.

Description

Technical Field

[0001] This invention relates to the field of energy conversion technology, and in particular to an adsorption thermoacoustic refrigeration unit, an adsorption thermoacoustic refrigeration machine, and a method thereof. Background Technology

[0002] Thermoacoustic refrigeration is a new type of refrigeration equipment with a simple structure, usually consisting only of a heat exchanger and pipe sections. Apart from the sound source, there are no mechanical moving parts in the system. Its outstanding advantages are high reliability and environmental friendliness, so the scientific and industrial communities have high hopes for it.

[0003] However, the existing thermoacoustic refrigerators have low refrigeration efficiency and energy density, which makes them lag behind mature refrigeration technologies and thus prevents them from being widely used. Summary of the Invention

[0004] This invention provides an adsorption-type thermoacoustic refrigeration unit, an adsorption-type thermoacoustic refrigerator, and a method to solve the defects of low refrigeration efficiency and energy density of existing thermoacoustic refrigerators.

[0005] The present invention provides an adsorption thermoacoustic refrigeration unit, comprising a cooler, a regenerator and a hot end heat exchanger connected in sequence.

[0006] The regenerator is constructed with multiple adsorbent channels, and the adsorbent channels contain adsorbate gas.

[0007] According to an embodiment of the present invention, an adsorption-type thermoacoustic refrigeration unit is provided, wherein the regenerator is constructed with a regenerator channel, the inner wall of the regenerator channel is provided with an adsorbent, and the regenerator channel with the adsorbent forms the adsorbent flow channel.

[0008] According to an embodiment of the present invention, an adsorption-type thermoacoustic refrigeration unit is provided, wherein the regenerator is made of an adsorbent, the regenerator is constructed with a regenerator channel, and the regenerator channel forms the adsorbent flow channel.

[0009] According to an embodiment of the present invention, an adsorption-type thermoacoustic refrigeration unit is provided, wherein the adsorbent is one of activated carbon, siliceous rock, or metal hydride.

[0010] According to an embodiment of the present invention, an adsorption-type thermoacoustic refrigeration unit is provided, wherein the adsorbate gas is one of carbon dioxide, ammonia, and hydrogen.

[0011] According to an embodiment of the present invention, an adsorption-type thermoacoustic refrigeration unit is provided, wherein the regenerator is made of stacked multi-layer wire mesh or porous foam.

[0012] According to an embodiment of the present invention, an adsorption-type thermoacoustic refrigeration unit is provided, wherein a plurality of adsorbent channels are arranged in parallel and at equal intervals.

[0013] The present invention also provides an adsorption thermoacoustic refrigerator, comprising a resonant tube, a sound source, and an adsorption thermoacoustic refrigeration unit as described in any one of the above, wherein the adsorption thermoacoustic refrigeration unit and the sound source are spaced apart from each other on the resonant tube.

[0014] The present invention also provides a cooling method for an adsorption-type thermoacoustic refrigerator, based on the above-mentioned adsorption-type thermoacoustic refrigerator, the method comprising:

[0015] A sound source inputs a sound wave of a target frequency into a resonant tube, and the sound wave is used to construct a sound field for the resonant tube;

[0016] Under the influence of the sound field, the adsorbate gas is adsorbed and desorbed using the adsorbent channel inside the regenerator.

[0017] According to an embodiment of the present invention, a heat exchange method for an adsorption-type thermoacoustic refrigerator is provided, wherein the sound field includes a standing wave sound field and / or a traveling wave sound field.

[0018] The adsorption-type thermoacoustic refrigeration unit and adsorption-type thermoacoustic refrigerator provided in this embodiment of the invention have multiple adsorbent channels in the regenerator. The adsorbent channels in the regenerator are used to adsorb and desorb the adsorbate gas to enhance gas-solid heat transfer, thereby enhancing the thermoacoustic refrigeration cycle and increasing refrigeration efficiency and energy density. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the adsorption-type thermoacoustic refrigeration unit provided in an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the adsorption-type thermoacoustic refrigerator provided in an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram illustrating the cooling method of the adsorption-type thermoacoustic refrigerator provided in an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the thermoacoustic refrigeration cycle principle of the adsorption thermoacoustic refrigerator under a standing wave sound field provided in an embodiment of the present invention;

[0024] Figure 5This is a schematic diagram of the thermoacoustic refrigeration cycle principle of the adsorption-type thermoacoustic refrigerator under traveling wave sound field provided in the embodiment of the present invention.

[0025] Figure label:

[0026] 1. Adsorption-type thermoacoustic refrigeration unit; 11. Cooler; 111. Adsorbent layer; 12. Regenerator; 13. Hot end heat exchanger;

[0027] 2. Resonant tube;

[0028] 3. Sound source. Detailed Implementation

[0029] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0030] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0032] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0034] An embodiment of the first aspect of the present invention provides an adsorption-type thermoacoustic cooling unit. Figure 1 A schematic diagram of the structure of the adsorption-type thermoacoustic refrigeration unit provided in an embodiment of the present invention is illustrated, such as... Figure 1 As shown, the adsorption-type thermoacoustic refrigeration unit 1 includes a cooler 11, a regenerator 12 and a hot-end heat exchanger 13 connected in sequence. The regenerator 12 is constructed with multiple adsorbent channels, and the adsorbent channels have adsorbate gas.

[0035] It is understandable that the regenerator 12 is constructed with an adsorbent flow channel, and the adsorbent flow channel of the regenerator 12 contains adsorbate gas, which is used for adsorption between the adsorbate gas and the adsorbent flow channel.

[0036] It is understandable that when the adsorption thermoacoustic refrigeration unit 1 is working, the adsorbate gas in the adsorbent channel of the regenerator 12 will be adsorbed and desorbed by the adsorbent channel under the action of the sound field. The resulting release and absorption of adsorption heat can effectively enhance gas-solid heat transfer, thereby enhancing the thermoacoustic refrigeration cycle.

[0037] The adsorption-type thermoacoustic refrigeration unit provided in this embodiment of the invention has multiple adsorbent channels in the regenerator 12. The adsorbent channels in the regenerator 12 are used to adsorb and desorb the adsorbate gas to enhance gas-solid heat transfer, thereby enhancing the thermoacoustic refrigeration cycle and increasing the refrigeration efficiency and energy density. Therefore, it can be widely used.

[0038] It should be noted that in related technologies, improving the sound field is used to enhance the performance of thermoacoustic refrigerators. However, the improvement effect is poor, and the structure involved in improving the sound field is relatively complex, resulting in complex operation and high cost. Furthermore, in related technologies, to improve cooling efficiency and energy density, the charging pressure can be increased to change the overall structure and place the regenerator in a suitable position. However, increasing the charging pressure requires high-quality materials and is also dangerous; changing the overall structure is complex and costly. The adsorption-type thermoacoustic refrigeration unit provided in this embodiment of the invention increases cooling efficiency and energy density simply by designing the adsorbent flow channel in the regenerator 12, thus simplifying operation and reducing cost. According to this embodiment, the regenerator 12 has a hot end and a cold end. A cooler 11 is connected to the cold end of the regenerator 12, and a hot-end heat exchanger 13 is connected to the hot end of the regenerator 12. When the adsorption-type thermoacoustic refrigeration unit of this embodiment is running, under the action of the thermoacoustic effect, heat is pumped from the cold end to the hot end of the regenerator 12, thus generating a cooling effect at the cooler 11.

[0039] In one embodiment of the present invention, the regenerator 12 is configured with a regenerator channel, the inner wall of the regenerator channel having an adsorbent, and the regenerator channel having an adsorbent forms an adsorbent flow channel.

[0040] It is understandable that the regenerator 12 has multiple regenerator channels, and by providing adsorbent on the walls of the regenerator channels, the regenerator channels with adsorbent serve as adsorbent flow channels.

[0041] For example, the regenerator 12 has a porous structure, with multiple through holes machined on it. These through holes serve as multiple regenerator channels, and an adsorbent is placed on the inner wall of each regenerator channel, thereby forming an adsorbent layer 111 on the inner wall of the regenerator channel. The thickness of the adsorbent layer 111 can be about 1 / 10 of the size of the regenerator channel. For example, if the cross-section of the regenerator channel is circular, the thickness of the adsorbent layer 111 is about 1 / 10 of the diameter of the regenerator channel; if the cross-section of the regenerator channel is square, the thickness of the adsorbent layer 111 is about 1 / 10 of the width of the regenerator channel.

[0042] It should be noted that placing the adsorbent in the regenerator channels of the regenerator 12 is time-consuming and labor-intensive, and the manufacturing difficulty of the regenerator 12 is further increased when there are a large number of regenerator channels. Therefore, this embodiment provides another regenerator structure, specifically: the regenerator 12 is made of adsorbent, and the regenerator 12 is constructed with regenerator channels, which form adsorbent flow channels.

[0043] It is understandable that the regenerator 12 is made of adsorbent material, and then multiple through holes are processed on the regenerator 12. Since the regenerator 12 is made of adsorbent material, the inner wall of the through holes is adsorbent, so the regenerator channel directly serves as the adsorbent flow channel.

[0044] It should be noted that the regenerator 12 is made of adsorbent material. Only multiple through holes need to be processed on the regenerator 12 to form a regenerator 12 with multiple adsorbent flow channels. This eliminates the process of arranging the adsorbent in the regenerator channels, thus simplifying the preparation process of the regenerator 12.

[0045] It should be noted that the regenerator 12 is made of adsorbent material. Alternatively, multiple through holes can be formed on the regenerator 12 while processing it with adsorbent material, so that the regenerator 12 with adsorbent flow channels can be directly processed from adsorbent material in one step.

[0046] Furthermore, the multiple adsorbent channels of the regenerator 12 are arranged in parallel. For example, the regenerator 12 has multiple through holes arranged at intervals, thus forming multiple adsorbent channels arranged in parallel. Preferably, the multiple adsorbent channels are arranged at equal intervals to achieve uniform gas-solid heat transfer.

[0047] In one embodiment of the present invention, the regenerator 12 may also be a porous structure formed of porous foam, in which case the regenerator 12 may be made of porous foam. In other embodiments, the regenerator 12 may also be a porous structure formed of wire mesh, in which case the regenerator 12 may be made of multiple layers of stacked wire mesh.

[0048] According to embodiments of the present invention, refrigeration can be achieved using a working fluid pair with significant adsorption properties, consisting of an adsorbate gas and an adsorbent. In this embodiment, the adsorbent is one of activated carbon, siliceous rock, or a metal hydride, and the adsorbate gas is one of carbon dioxide, ammonia, or hydrogen.

[0049] For example, the adsorbate gas and adsorbent can be an ammonia-activated carbon working fluid pair, where the adsorbate gas is ammonia and the adsorbent is activated carbon. Of course, the adsorbate gas and adsorbent can also be working fluid pairs with adsorption-based refrigeration, such as carbon dioxide-activated carbon working fluid pair, carbon dioxide-siliceous rock working fluid pair, or hydrogen-metal hydride working fluid pair.

[0050] In an optional embodiment of the present invention, the adsorbate gas and the adsorbent are a carbon dioxide-activated carbon working fluid pair, where gaseous carbon dioxide serves as both the adsorbate and the working fluid for thermoacoustic oscillation, and activated carbon serves as the adsorbent, which can be the material of the adsorbent flow channel wall or the material of the entire regenerator 12.

[0051] It is understandable that when the thermoacoustic system is working, the gaseous carbon dioxide in the regenerator 12 will undergo periodic adsorption and desorption with the activated carbon on the surface of the adsorbent channel under the action of pressure and temperature fluctuations. The resulting release and absorption of adsorption heat can effectively enhance gas-solid heat exchange, increase the energy density of thermoacoustic conversion, and thus improve the performance of the thermoacoustic refrigerator.

[0052] A second aspect of the present invention provides an adsorption-type thermoacoustic refrigerator. Figure 2 A schematic diagram of the structure of the adsorption-type thermoacoustic refrigerator provided in an example embodiment of the present invention is shown below. Figure 2 As shown, the adsorption thermoacoustic refrigerator includes a resonant tube 2, an adsorption thermoacoustic refrigerator unit 1, and at least one sound source 3. The adsorption thermoacoustic refrigerator unit 1 is the adsorption thermoacoustic refrigerator unit 1 provided in any of the above embodiments. The adsorption thermoacoustic refrigerator unit 1 and the sound source 3 are spaced apart on the resonant tube 2, wherein the cooler 11 of the adsorption thermoacoustic refrigerator unit 1 and the sound source 3 are arranged adjacent to each other at intervals.

[0053] It is understood that during the operation of the adsorption-type thermoacoustic refrigerator in this embodiment, acoustic oscillations occur within the resonant tube 2 under the drive of the sound source 3, thereby triggering a thermoacoustic refrigeration cycle within the adsorbent channel of the regenerator 12. That is, under the action of the thermoacoustic effect, heat is pumped from the cold end to the hot end of the regenerator 12. The cooler 11 is connected to the cold end of the regenerator 12, and the hot-end heat exchanger 13 is connected to the hot end of the regenerator 12, thus generating a cooling effect at the cooler 11. During the thermoacoustic refrigeration cycle, due to fluctuations in pressure and temperature, the adsorbate gas will undergo periodic adsorption and desorption with the wall of the adsorbent channel.

[0054] According to embodiments of the present invention, thermoacoustic refrigerators can be classified in various ways depending on the resonant tube 2. Therefore, the adsorption-type thermoacoustic refrigerator unit 1 of the present invention can be applied to thermoacoustic refrigerators of various structural types including standing waves, traveling waves, and both standing waves and traveling waves.

[0055] Optionally, the thermoacoustic cooling cycle can be a standing wave type, a traveling wave type, or a combination of traveling wave and standing wave.

[0056] In this embodiment, as Figure 2 As shown, resonant tube 2 forms a half-wavelength standing wave sound field. Figure 2 The adsorption thermoacoustic refrigerator shown is a standing wave type adsorption thermoacoustic refrigerator, so the thermoacoustic refrigeration cycle is a standing wave type. The adsorption thermoacoustic refrigerator of the present invention includes, but is not limited to, a standing wave type adsorption thermoacoustic refrigerator, and can also be a traveling wave type adsorption thermoacoustic refrigerator or other thermoacoustic refrigerators.

[0057] The adsorption-type thermoacoustic refrigerator provided in this embodiment of the invention has multiple adsorbent channels in the regenerator 12. The adsorption heat generated by the adsorption and desorption of the adsorbent gas in the regenerator 12 is used to enhance energy conversion, which is beneficial to improving the cooling power density, cooling efficiency and other performance of the thermoacoustic refrigerator.

[0058] According to an embodiment of the present invention, the adsorption thermoacoustic refrigerator utilizes the temperature gradient generated during the compression and expansion of the working gas to transfer heat.

[0059] Understandably, during the compression phase of the working gas, the partial pressure of the adsorbate gas increases, forcing the adsorbate gas to be adsorbed onto the adsorbent channel (adsorption), releasing heat.

[0060] During the expansion phase, the working gas reduces the partial pressure of the adsorbate gas, causing the adsorbate gas to be released from the adsorbent channel (desorption) and absorbing heat.

[0061] The adsorption and desorption process of the adsorbate gas in the adsorbent channel of the regenerator 12 carries the heat of adsorption, which is transferred between the working gas and the adsorbent channel of the regenerator 12. This process is accompanied by changes in the volume and density of the working gas. This process enhances thermoacoustic oscillation and strengthens the thermoacoustic effect, making the adsorption thermoacoustic refrigerator have higher efficiency and energy density.

[0062] It should be noted that the working gas can be the working gas of the thermoacoustic oscillation of the adsorption thermoacoustic refrigerator, or it can be a mixture of adsorbate gas and other thermoacoustic oscillation gases, or it can be entirely adsorbate gas.

[0063] Based on the adsorption-type thermoacoustic refrigerator provided in any of the above embodiments, embodiments of the present invention also propose a cooling method for the adsorption-type thermoacoustic refrigerator, such as... Figure 3 As shown, the method includes the following steps:

[0064] Step 100: Use sound source 3 to input sound waves of the target frequency into resonant tube 2. The sound waves are used to construct a sound field in resonant tube 2.

[0065] It is understandable that when the sound source 3 inputs a sound wave of the target frequency (appropriate frequency) into the resonant tube 2, a sound field is built inside the resonant tube 2.

[0066] The sound field includes a standing wave sound field and / or a traveling wave sound field. The sound field can be a standing wave type, a traveling wave type, or a combination of traveling waves and standing waves.

[0067] Step 200: Under the influence of the sound field, the adsorbate gas is adsorbed and desorbed using the adsorbent channel in the regenerator 12.

[0068] Understandably, under the influence of the sound field, a thermoacoustic refrigeration cycle occurs within the regenerator 12, pumping heat from the cold end to the hot end of the regenerator 12, thus producing a cooling effect. Therefore, during stable operation, the cooler 11 connected to the cold end of the regenerator 12 absorbs heat from the cold source, while the hot-end heat exchanger 13 connected to the hot end of the regenerator 12 releases heat to the environment.

[0069] It should be noted that, compared with traditional thermoacoustic refrigerators, due to the pressure and temperature fluctuations caused by the sound field, the adsorbate gas in the adsorbent channel of the regenerator 12 undergoes periodic adsorption and desorption with the adsorbent channel, thereby enhancing gas-solid heat transfer, thus strengthening the thermoacoustic refrigeration cycle and increasing the cooling capacity and cooling efficiency (COP).

[0070] According to embodiments of the present invention, the adsorption-type thermoacoustic refrigerator utilizes the standing wave component in sound waves, thus making it a standing wave type adsorption-type thermoacoustic refrigerator. Figure 4 As shown, the corresponding thermoacoustic refrigeration cycle includes the following four processes: S11, adiabatic expansion; S12, isobaric heat absorption accompanied by desorption; S13, adiabatic compression; S14, isobaric heat release accompanied by adsorption. It should be noted here that... Figure 4 In the equation, Tc and Th represent the cold end temperature and hot end temperature of the regenerator, respectively, when the thermoacoustic refrigeration cycle reaches equilibrium.

[0071] Adsorption-type thermoacoustic refrigerators utilize the traveling wave component of sound waves, thus making them traveling wave type adsorption-type thermoacoustic refrigerators. Figure 5 As shown, the corresponding thermoacoustic refrigeration cycle includes the following four processes: S21, isobaric heat release accompanied by desorption; S22, isothermal expansion heat absorption accompanied by desorption; S23, isobaric heat absorption accompanied by adsorption; S24, isothermal compression heat release accompanied by adsorption. It should be noted here that... Figure 5 In the equation, Tc and Th represent the cold end temperature and hot end temperature of the regenerator, respectively, when the thermoacoustic refrigeration cycle reaches equilibrium.

[0072] It should be noted that the thermoacoustic refrigeration cycle processes of the above-mentioned standing wave type adsorption thermoacoustic refrigerator and traveling wave type adsorption thermoacoustic refrigerator have added adsorption and desorption processes compared with traditional standing wave and traveling wave refrigeration cycles, thereby enhancing gas-solid heat transfer, and thus enhancing the thermoacoustic refrigeration cycle, thereby increasing refrigeration efficiency and energy density.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adsorption-type thermoacoustic cooling unit, characterized in that, It includes a cooler (11), a regenerator (12), and a hot-end heat exchanger (13) connected in sequence; The regenerator (12) is constructed with multiple adsorbent channels, which contain adsorbate gas.

2. The adsorption-type thermoacoustic cooling unit according to claim 1, characterized in that, The regenerator (12) is constructed with a regenerator channel, the inner wall of which has an adsorbent, and the regenerator channel with the adsorbent forms the adsorbent flow channel.

3. The adsorption-type thermoacoustic cooling unit according to claim 1, characterized in that, The regenerator (12) is made of adsorbent and has a regenerator channel that forms the adsorbent flow channel.

4. The adsorption-type thermoacoustic cooling unit according to any one of claims 1 to 3, characterized in that, The adsorbent is one of activated carbon, siliceous rock, or metal hydride.

5. The adsorption-type thermoacoustic cooling unit according to claim 4, characterized in that, The adsorbate gas is one of carbon dioxide, ammonia, and hydrogen.

6. The adsorption-type thermoacoustic cooling unit according to any one of claims 1 to 3, characterized in that, The regenerator (12) is made of stacked multi-layered wire mesh or porous foam.

7. The adsorption-type thermoacoustic cooling unit according to any one of claims 1 to 3, characterized in that, The multiple adsorbent channels are arranged in parallel and at equal intervals.

8. An adsorption-type thermoacoustic refrigerator, characterized in that, It includes a resonant tube (2), a sound source (3), and an adsorption thermoacoustic cooling unit as described in any one of claims 1 to 7, wherein the adsorption thermoacoustic cooling unit (1) and the sound source (3) are spaced apart from the resonant tube (2).

9. A refrigeration method for an adsorption-type thermoacoustic refrigerator, characterized in that, Based on the adsorption-type thermoacoustic refrigerator of claim 8, the method includes: A sound wave of the target frequency is input into the resonant tube (2) using a sound source (3), and the sound wave is used to construct a sound field in the resonant tube (2); Under the influence of the sound field, the adsorbate gas is adsorbed and desorbed by the adsorbent channel in the regenerator (12).

10. The heat exchange method of the adsorption-type thermoacoustic refrigerator according to claim 9, characterized in that, The sound field includes a standing wave sound field and / or a traveling wave sound field.

Images