CN219390117U - Phase modulation device for Stirling refrigerator and Stirling refrigerator - Google Patents
Phase modulation device for Stirling refrigerator and Stirling refrigerator Download PDFInfo
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- CN219390117U CN219390117U CN202222929951.XU CN202222929951U CN219390117U CN 219390117 U CN219390117 U CN 219390117U CN 202222929951 U CN202222929951 U CN 202222929951U CN 219390117 U CN219390117 U CN 219390117U
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Abstract
The application relates to the technical field of low-temperature refrigeration and discloses a phase modulation device for a Stirling refrigerator. The phase modulation device for a Stirling refrigerator includes: the pipe body defines a circulation space so that the heat transfer working medium flows along the circulation space; porous material fills the flow-through space in the form of a stack and/or a roll. This application carries out the phase modulation through setting up shorter body and being located the inside porous material of body, has strengthened phase modulation device's phase modulation ability. Compared with the traditional inertia tube, the length of the tube body in the embodiment is greatly shortened on the premise of the same phase modulation capability, and the length of the tube body can be reduced from a few meters of the traditional inertia tube to a few centimeters, so that the length of the Stirling refrigerator can be shortened. The application also discloses a Stirling refrigerator.
Description
Technical Field
The present application relates to the field of low temperature refrigeration technology, for example, to a phase modulation device for a stirling cooler and a stirling cooler.
Background
Since the advent of Stirling refrigerators, stirling refrigerators have been a research focus because of their simple structure, no moving parts at low temperatures, low mechanical vibration, reliable operation, and long life. The phase modulation device is used as a key factor for influencing the efficiency of the phase modulation device, and can directly influence the phase matching of the volume flow and the pressure wave at the cold end, thereby influencing the refrigeration efficiency of the phase modulation device. The Stirling refrigerator is provided with various phase modulation devices, such as an ejector, and the ejector is formed by a piston structure and a spring structure, so that the sound work at the cold end is converted into mechanical work and is dissipated; if the aperture type is used, the higher acoustic resistance is utilized, so that the acoustic power is greatly attenuated when passing through the aperture type, and the purpose of adjusting the phase is achieved; the inertia tube utilizes the fluid inertia in the slender pipeline to adjust the phase difference, and compared with the small hole, the phase modulation capability of the inertia tube is greatly improved; there are other phasing structures that are not widely used such as double piston, four valve and active gas reservoir types. These different phasing arrangements all improve the performance of the Stirling refrigerator to varying degrees.
The related art provides a high-power pulse tube refrigerator based on a Stirling refrigerator, which is characterized by comprising a crank connecting rod, a compression piston, a water cooler, a heat regenerator, a cold end heat exchanger, a pulse tube, a hot end heat exchanger, an inertia tube and a gas reservoir, wherein a piston rod pushes the compression piston to be communicated with the heat regenerator through the water cooler and then be communicated with the pulse tube, the two ends of the pulse tube are respectively provided with the hot end heat exchanger and the cold end heat exchanger, and the hot end heat exchanger is communicated with the gas reservoir through the inertia tube.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
the refrigerator in the related art adopts the traditional inertia tube, and the inertia tube needs to utilize the fluid inertia in the slender pipeline to adjust the phase difference, so that the length requirement of the inertia tube is very high, and even the length of the inertia tube reaches several meters, and the length of the refrigerator is long.
It should be noted that the information disclosed in the foregoing background section is only for enhancing understanding of the background of the present application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.
The embodiment of the disclosure provides a phase modulation device for a Stirling refrigerator and the Stirling refrigerator, so as to solve the problem that the refrigerator is longer due to the adoption of a traditional inertia tube.
Embodiments of the first aspect of the present application provide a phase modulation apparatus for a Stirling refrigerator, the phase modulation apparatus for a Stirling refrigerator comprising: the pipe body defines a circulation space so that the heat transfer working medium flows along the circulation space; porous material fills the flow-through space in the form of a stack and/or a roll.
In some alternative embodiments, the phase modulation device for a Stirling refrigerator further comprises: and the first flange structure is arranged at one end of the pipe body and used for being connected with one of the hot-end heat exchanger or the air reservoir.
In some alternative embodiments, the phase modulation device for a Stirling refrigerator further comprises: the second flange structure is arranged at the other end of the pipe body and is used for being connected with the other one of the hot end heat exchanger or the air reservoir.
In some alternative embodiments, the first flange structure has a dimension that is greater than or equal to a dimension of the second flange structure.
In some alternative embodiments, the heat transfer medium is helium.
Embodiments of the second aspect of the present application provide a stirling cooler comprising a phase modulation device for a stirling-type cooler as claimed in any one of the alternative embodiments described above.
In some alternative embodiments, the Stirling cooler further comprises: the hot end heat exchanger is connected with one end of the phase modulation device; and the air reservoir is connected with the other end of the phase modulation device.
In some alternative embodiments, the Stirling cooler further comprises: the device comprises a compressor, a transmission pipe, a stage aftercooler, a heat regenerator, a cold end heat exchanger and a pulse tube which are connected in sequence, wherein the hot end heat exchanger is connected with the pulse tube.
The phase modulation device for the Stirling refrigerator and the Stirling refrigerator provided by the embodiment of the disclosure can realize the following technical effects:
the phase modulation is carried out by arranging the shorter pipe body and the porous material positioned in the pipe body, so that the phase modulation capacity of the phase modulation device is enhanced. Compared with the traditional inertia tube, the length of the tube body in the embodiment is greatly shortened on the premise of the same phase modulation capability, and the length of the tube body can be reduced from a few meters of the traditional inertia tube to a few centimeters. Compared with the traditional inertia tube, the phase modulation amplitude is increased, the phase modulation amplitude of the phase modulation device can reach 180 degrees, so that the refrigerating efficiency of the Stirling refrigerator can be improved.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:
FIG. 1 is a schematic diagram of a phase modulation device for a Stirling refrigerator according to an embodiment of the present disclosure;
FIG. 2 is a schematic view of a portion of a phase modulation device for a Stirling refrigerator according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of a portion of another phase modulation device for a Stirling refrigerator according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of a stirling cooler according to an embodiment of the present disclosure.
Reference numerals:
10: phase modulation device, 101: tube body, 102: flow space, 103: porous material, 1031: PET material, 1032: stainless steel wire mesh, 1033: metal pellets, 104: first flange structure, 105: a second flange structure,
11: compressor, 12: transmission tube, 13: stage aftercooler, 14: regenerator, 15: cold end heat exchanger, 16: vessel, 17: hot side heat exchanger, 18: and (5) air warehouse.
Detailed Description
So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.
The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.
In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.
The term "plurality" means two or more, unless otherwise indicated.
In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.
It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.
Referring to fig. 1 to 4, an embodiment of the present disclosure provides a phase modulation apparatus for a stirling-type refrigerator, the phase modulation apparatus for a stirling-type refrigerator including: a tube body 101 and a porous material 103, the tube body 101 defining a flow-through space 102 so that a heat transfer medium flows along the flow-through space 102; the porous material 103 fills the flow space 102 in a stack and/or a roll-up.
By adopting the phase modulation device for the Stirling refrigerator provided by the embodiment of the disclosure, through the arrangement of the pipe body 101, the flow-through space 102 is defined in the pipe body 101, and the heat transfer working medium can flow in the flow-through space 102 along the extending direction of the pipe body 101. By filling the flow space 102 with the porous material 103, the flow space 102 is divided into a plurality of flow channels by the porous material 103, and the heat transfer working medium flows in the flow channels, so that the pipe body 101 has good phase modulation capability while shortening the length.
As the phase modulation device for the stirling refrigerator of the present embodiment, the basic theory is as follows:
according to the law of conservation of momentum and conservation of energy, the pressure wave and the volume flow of the phase modulation device accord with the following formula.
Wherein it is assumed that both the pressure wave and the volume flow are sinusoidal.
For its acoustic resistance
For its acoustic sense
For its thermal relaxation acoustic guide
For its sound volume
Coefficient f in calculation formula for four acoustic impedances v And f k Is that
Finally, for a phase modulation device for a Stirling refrigerator, the calculated acoustic resistance of the phase modulation device for a Stirling refrigerator is on the order of 10 greater than the acoustic inductance 2 The sound sensation is 10 orders of magnitude greater than the sound volume 5 Above, the phase modulation device has better phase modulation ability at this moment. The sound resistance is relatively large, so that the sound power can be effectively dissipated, and the sound inductance is relatively large, so that the integral inductance is ensured, and the phase modulation device has relatively good phase modulation capability.
Due to the larger porous material 103The larger acoustic resistance of porous material 103 than that of the inertance tube is more conducive to dissipation of acoustic power. After the porous material 103 is filled in the circulation space 102 in a rolled and/or stacked mode, long and narrow small holes or channels are formed in the circulation space 102, so that the sound sensation is greatly increased, and the sound sensation is far greater than the sound resistance at the moment and satisfies 10 5 The order of magnitude requirement of (2) and further ensures that the phase modulation device has better phase modulation capability relative to the tube body 101 with a shorter inertia tube, and further can shorten the length of the Stirling refrigerator so as to improve the convenience of the Stirling refrigerator.
As an example, referring to fig. 1 to 3, the pipe body 101 is a circular pipe, a flow space 102 is formed in the middle of the circular pipe, and the flow space 102 is filled with a porous material 103, wherein fig. 2 shows a filling form in which the porous material 103 is filled in the flow space 102 in a stacked form, and fig. 3 shows a filling form in which the porous material 103 is filled in the flow space 102 in a rolled form.
It should be noted that, the pipe body 101 may be a square pipe, or may be an oval pipe, and it is understood that the cross-sectional shape of the pipe body 101 along the direction perpendicular to the flow direction of the heat transfer medium is not unique, and any cross-sectional shape as long as the phase modulation capability satisfies the use requirement belongs to one of the alternative embodiments of the present application.
Specifically, in the above-described embodiment, the phase modulation capability of the phase modulation device is enhanced by providing a shorter tube body 101 and a porous material 103 located inside the tube body 101 for phase modulation. Compared with the traditional inertance tube, the length of the tube body 101 in the embodiment is greatly shortened on the premise of the same phase modulation capability, and the length of the tube body can be reduced from a few meters of the traditional inertance tube to a few centimeters. Compared with the traditional inertia tube, the phase modulation amplitude is increased, the phase modulation amplitude of the phase modulation device can reach 180 degrees, and the refrigeration efficiency of the Stirling refrigerator can be improved.
Optionally, the movement mode of the heat transfer working medium in the phase modulation device is sinusoidal movement, and the pressure fluctuation and the volume flow are both sinusoidal or approximately sinusoidal movement.
Thus, the phase modulation capability of the phase modulation device can be guaranteed to be fully exerted, and the refrigerating effect of the Stirling refrigerator is further improved.
In some embodiments, the porous material 103 includes one or more of PET material 1031, stainless steel mesh 1032, and metal pellets 1033.
The phase modulation device for the Stirling refrigerator provided by the embodiment of the disclosure is adopted, and the PET material 1031 (Polyethylene terephthalate) is also called polyethylene terephthalate, commonly called polyester resin, and is the most main variety in thermoplastic polyester. The PET material 1031 is adopted because the PET material 1031 has excellent physical and mechanical properties in a wider temperature range, the long-term use temperature can reach 120 ℃, the short-term use temperature can resist 150 ℃, the low temperature of-70 ℃ and the influence on the mechanical properties is small at high and low temperatures. And the PET material 1031 has low gas and water vapor permeability and excellent gas resistance, water, oil and peculiar smell, can ensure that the heat transfer working medium does not react with the PET material when flowing through the PET material, and improves the reliability of the phase modulation device. The stainless steel wire mesh 1032 and the metal balls 1033 have good corrosion resistance, atmospheric corrosion resistance and high temperature strength, and when the heat transfer working medium flows through the stainless steel wire mesh 1032 and the metal balls 1033, the heat transfer working medium cannot react with the heat transfer working medium, so that the reliability of the phase modulation device can be improved.
Preferably, the porous material 103 comprises all of the PET material 1031, stainless steel mesh 1032, and metal pellets 1033, and by filling with different materials, the stability of the phase modulation device may be improved compared to filling with one material. Further, by adding the PET material 1031, costs can be reduced compared to a solution using only the stainless steel mesh 1032 or the metal pellets 1033.
Illustratively, when the porous material 103 includes the PET material 1031, the stainless steel mesh 1032, and the metal balls 1033 as shown in fig. 2 and 3, a filling form in which the PET material, the stainless steel mesh 1032, and the metal balls 1033 are alternately stacked is shown in fig. 2, that is, the PET material 1031, the stainless steel mesh 1032, and the metal balls 1033 are alternately filled in the circulation space 102 in order along the axial direction of the tube body 101. In fig. 3, the PET material 1031, the stainless steel mesh 1032, and the metal pellets 1033 are shown in an alternately stacked filling form, that is, the PET material 1031, the stainless steel mesh 1032, and the metal pellets 1033 are alternately stacked in order along the radial direction of the tube body 101 to be filled in the circulation space 102. The filling sequence of the PET material 1031, the stainless steel mesh 1032 and the metal balls 1033 may be the PET material 1031, the stainless steel mesh 1032 and the metal balls 1033, or the PET material 1031, the metal balls 1033 and the stainless steel mesh 1032, and it is understood that the filling sequence of the porous material 103 is not limited.
In some embodiments, when the porous material 103 comprises multiple of the PET material 1031, the stainless steel mesh 1032, and the metal pellets 1033, the porosity in the PET material, the stainless steel mesh 1032, and the metal pellets 1033 are partially or entirely the same.
By adopting the phase modulation device for the Stirling refrigerator, provided by the embodiment of the disclosure, through setting different porous materials 103 with the same porosity, the acoustic resistance of the different porous materials 103 can be conveniently controlled, and a user can fill the porous materials 103 with the porosity larger or smaller, so that the user can conveniently adjust the phase modulation capability of the phase modulation device.
Illustratively, the tube 101 is filled with the PET material 1031 and the stainless steel mesh 1032 of the same porosity, and the user may fill the PET material 1031 and the stainless steel mesh 1032 of a smaller porosity to enhance the phasing capability of the phasing device when detecting that the phasing device is less capable of phasing.
In some embodiments, the phase modulation device for a Stirling refrigerator further comprises: the first flange structure 104, the first flange structure 104 is disposed at one end of the pipe body 101, and is used for being connected with one of the hot end heat exchanger or the air reservoir.
By adopting the phase modulation device for the Stirling refrigerator, which is provided by the embodiment of the disclosure, through the arrangement of the first flange structure 104, the pipe body 101 is conveniently in flange connection with one of the hot-end heat exchanger or the air reservoir through the first flange structure 104, and the reliability and the sealing performance of connection of the pipe body and the hot-end heat exchanger or the air reservoir are ensured.
In some embodiments, the phase modulation device for a Stirling refrigerator further comprises: the second flange structure 105, the second flange structure 105 is arranged at the other end of the pipe body 101 and is used for being connected with the other one of the hot end heat exchanger or the air reservoir.
By adopting the phase modulation device for the Stirling refrigerator, which is provided by the embodiment of the disclosure, through the arrangement of the second flange structure 105, the pipe body 101 is convenient to be in flange connection with other parts through the second flange structure 105, and the connection reliability and the sealing performance of the second flange structure and the second flange structure are ensured.
The first flange structure 104 is disposed at one end of the pipe body 101, the size of the first flange structure 104 is larger than that of the pipe body 101, through holes are formed in the portion, protruding out of the pipe body 101, of the first flange structure 104, and the number of the through holes is multiple, alternatively, six through holes are uniformly distributed in the portion, protruding out of the pipe body 101, of the first flange structure 104 around the axis of the first flange structure 104, and therefore, through the arrangement of the through holes, a user can connect the first flange structure 104 with another corresponding flange structure in the hot-end heat exchanger or the air reservoir through bolts, and convenience is brought to installation and disassembly of the user.
Optionally, the first flange structure 104 and the second flange structure 105 are provided with a plurality of through holes, and the plurality of through holes are uniformly distributed on the first flange structure 104 and the second flange structure 105, so that the first flange structure 104 and the second flange structure 105 are detachably connected with the corresponding structures through bolts and nuts respectively.
Therefore, the reliability of connection between the two ends of the phase modulation device and other components can be ensured, and the heat transfer working medium is prevented from flowing out along the connection part of the phase modulation device and other components.
In some embodiments, the first flange structure 104 has a size that is greater than or equal to the size of the second flange structure 105.
By adopting the phase modulation device for the Stirling refrigerator, provided by the embodiment of the disclosure, the sizes of the first flange structure 104 and the second flange structure 105 are controlled, so that the two ends of the phase modulation device are connected with components with different sizes, and the practicability of the phase modulation device can be improved.
Illustratively, as shown in connection with fig. 1, the dimensions in the first flange structure 104 are equal to the dimensions of the second flange structure 105, which facilitates the production of the phase modulation device.
In some embodiments, the heat transfer medium is helium.
By adopting the phase modulation device for the Stirling refrigerator, which is provided by the embodiment of the disclosure, the safety of the phase modulation device can be improved by using helium as a heat transfer working medium.
Alternatively, air can be used as the heat transfer medium, so that the cost can be effectively reduced, but compared with helium, the efficiency of the phase modulation device can be reduced.
Optionally, hydrogen can be used as the heat transfer medium.
The Stirling refrigerator performs refrigeration by virtue of gas expansion heat absorption in the ejector, and the refrigeration temperature of the Stirling refrigerator can reach minus two hundred seventy ℃ at the lowest. The Stirling refrigerator has the advantages of compact structure, wide working temperature range, quick start, high efficiency, simple operation and the like, can be divided into a mechanical Stirling refrigerator and a pneumatic Stirling refrigerator according to the driving mode of the ejector, and can be divided into an integral Stirling refrigerator and a split Stirling refrigerator according to the setting modes of the compressor and the ejector. The working principle of Stirling is that the working gas in an initial state is compressed by means of a compressor driven by a motor, the temperature of the working gas is increased while the gas is compressed, the temperature of the working gas is reduced by a cold accumulator, the volume of the working gas expands in an ejector to absorb heat, the gas after absorbing heat returns to the initial state and the initial position, and the gas is reciprocally circulated in such a way, and the temperature of one end of the ejector is continuously reduced, so that the refrigerating function is realized. In either form of stirling cooler, the reciprocating motion of the compressor piston and the ejector piston must be out of phase to allow the working gas to be controlled in compression, de-temperature, expansion, reset, etc.
As shown in connection with fig. 4, an embodiment of the present disclosure provides a stirling cooler comprising a phase modulation device for a stirling cooler as in any of the above embodiments.
The phase modulation device 10 for a stirling cooler according to any one of the embodiments of the present disclosure has the beneficial effects of the phase modulation device 10 for a stirling cooler according to any one of the embodiments of the present disclosure, and will not be described in detail herein.
In some embodiments, the Stirling cooler further comprises: the hot end heat exchanger 17 and the air reservoir 18, the hot end heat exchanger 17 is connected with one end of the phase modulation device 10; the air reservoir 18 is connected to the other end of the phase modulation device 10.
By adopting the Stirling refrigerator provided by the embodiment of the disclosure, the phase modulation device 10 is arranged between the hot-end heat exchanger 17 and the air reservoir 18, the phase modulation device 10 can replace a traditional inertia tube, the length of the Stirling refrigerator is greatly reduced, the hot-end heat exchanger 17 and the air reservoir 18 are respectively connected with one of the first flange structure 104 and the second flange structure 105, and the connection reliability of the phase modulation device 10 and the cold-end heat exchanger 15 and the air reservoir 18 is ensured.
Specific examples: as shown in fig. 4, a stirling-type refrigerator includes a compressor 11, a transfer tube 12, a stage aftercooler 13, a regenerator 14, a cold side heat exchanger 15, a pulse tube 16, a hot side heat exchanger 17, a phase modulation device 10, and a gas reservoir 18, which are connected in this order.
The compressor 11 is a linear compressor, which is also called a pressure wave generator, and pushes working medium gas (helium or hydrogen) inside the compressor 11 into alternating oscillation gas; the compressor 11 is connected with the stage aftercooler 13 through a transmission pipe 12, the transmission pipe 12 is an empty pipe, the stage aftercooler 13 can be a slit type heat exchanger or a shell-and-tube type heat exchanger, the alternating oscillation gas flows into the stage aftercooler 13 along the transmission pipe 12, and the stage aftercooler 13 cools down the high-temperature oscillation gas from the compressor 11 through cooling water or air; the cooled oscillating gas enters the regenerator 14, and the oscillating gas exchanges heat with the porous medium inside the regenerator 14.
In the first half of the cycle of the oscillating gas, the oscillating gas transfers heat to the porous medium, the temperature of the oscillating gas itself decreases, in the second half of the cycle, the oscillating gas absorbs heat from the porous medium, and the temperature of the oscillating gas itself increases, but as the heat absorbed and released by the gas in the first cycle is not equal, a temperature gradient is generated in the axial direction of the regenerator 14, so that the cold-end heat exchanger 15 connected to the regenerator 14 reaches a lower temperature.
The cold end heat exchanger 15 is a slit type heat exchanger and is made of copper with a high heat conductivity coefficient, so that the heat exchanger has the advantages of small resistance and high heat conductivity coefficient, and the cold end heat exchanger 15 can rapidly conduct out the cold energy generated by the oscillating gas so as to be used by other equipment with low temperature.
The pulse tube 16 is a hollow tube, one end of the pulse tube is connected with the cold end heat exchanger 15, the other end of the pulse tube is connected with the hot end heat exchanger 17, a large temperature gradient exists along the axial direction of the pulse tube 16, and heat absorbed from the cold end (the end connected with the cold end heat exchanger 15) of the pulse tube 16 can be discharged through the hot end heat exchanger 17 of the hot end (the end connected with the hot end heat exchanger 17) of the pulse tube 16; the hot end heat exchanger 17 is a slit heat exchanger, and the hot end heat exchanger 17 is sequentially connected with the phase modulation device 10 and the air reservoir 18; the phase modulation device 10 and the air reservoir 18 are used for enabling the refrigerator to obtain higher efficiency and more cold energy at the cold end; the air reservoir 18 is a relatively large empty bottle with helium as the internal working medium.
The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (8)
1. A phase modulation apparatus for a stirling cooler, comprising:
the pipe body defines a circulation space so that the heat transfer working medium flows along the circulation space;
porous material fills the flow-through space in the form of a stack and/or a roll.
2. The phase modulation device for a Stirling refrigerator according to claim 1, further comprising:
and the first flange structure is arranged at one end of the pipe body and used for being connected with one of the hot-end heat exchanger or the air reservoir.
3. The phase modulation device for a stirling cooler of claim 2, further comprising:
the second flange structure is arranged at the other end of the pipe body and is used for being connected with the other one of the hot end heat exchanger or the air reservoir.
4. A phase modulation device for a Stirling refrigerator according to claim 3 wherein,
the first flange structure has a size that is greater than or equal to a size of the second flange structure.
5. A phase modulation device for a Stirling refrigerator according to any one of claims 1 to 4,
the heat transfer working medium is helium.
6. A stirling cooler comprising a phase modulation device for a stirling cooler according to any one of claims 1 to 5.
7. The stirling cooler of claim 6, further comprising:
the hot end heat exchanger is connected with one end of the phase modulation device;
and the air reservoir is connected with the other end of the phase modulation device.
8. The stirling cooler of claim 7, further comprising:
the device comprises a compressor, a transmission pipe, a stage aftercooler, a heat regenerator, a cold end heat exchanger and a pulse tube which are connected in sequence, wherein the hot end heat exchanger is connected with the pulse tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222929951.XU CN219390117U (en) | 2022-11-03 | 2022-11-03 | Phase modulation device for Stirling refrigerator and Stirling refrigerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222929951.XU CN219390117U (en) | 2022-11-03 | 2022-11-03 | Phase modulation device for Stirling refrigerator and Stirling refrigerator |
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| CN219390117U true CN219390117U (en) | 2023-07-21 |
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| CN202222929951.XU Active CN219390117U (en) | 2022-11-03 | 2022-11-03 | Phase modulation device for Stirling refrigerator and Stirling refrigerator |
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