CN217005463U - Heat pipe system and refrigeration equipment - Google Patents

Abstract

The application relates to the technical field of refrigeration, and discloses a heat pipe system, includes: the heat pipe assembly comprises an annular heat pipe filled with a phase-change working medium, and the annular heat pipe comprises a condensation pipe section and an evaporation pipe section; the condensing pipe section is communicated with the evaporating pipe section through a shunting device, and the shunting device is used for uniformly shunting the phase change working medium flowing from the condensing pipe section to the evaporating pipe section; the phase-change energy storage component comprises a shell and a phase-change cold storage material filled in the shell; the shunting device is arranged in the phase change cold storage material, and the phase change working medium can pass through the shunting device to exchange heat with the phase change cold storage material. The phase-change cold storage material can transfer the stored cold to the gaseous phase-change working medium in the flow dividing device to enable the temperature of the gaseous phase-change working medium to be rapidly balanced, and the flow dividing device can play a role in uniformly dividing the flow to the evaporation pipe section. The application also discloses a refrigeration plant.

Description

Heat pipe system and refrigeration equipment

Technical Field

The present application relates to the field of refrigeration technology, and for example, to a heat pipe system and a refrigeration apparatus.

Background

At present, phase-change working media in a heat pipe mainly comprise various working media such as ammonia, Freon, water and the like, the liquid phase-change working media are absorbed in an evaporation pipe section of the heat pipe to be evaporated and changed into a gaseous state, the gaseous phase-change working media rise to a condensation pipe section of the heat pipe along the heat pipe under the action of pressure difference, the gaseous phase-change working media are released in the condensation pipe section to be condensed and changed into a liquid state, and the liquid working media enter the evaporation pipe section again to complete circulation. With the development of phase change heat storage materials, a plurality of heat pipe systems and phase change heat storage materials are combined and applied.

The prior art discloses a heat pipe system, which transfers cold energy to a condensation pipe section through a phase change cold storage material, wherein a phase change working medium condensed and liquefied in the condensation pipe section is directly introduced into an evaporation pipe section, and the phase change working medium exchanges heat with a cold utilization device in the evaporation pipe section.

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: after heat exchange with the phase change cold storage material, the liquid phase change working medium directly flows into the evaporation pipe section from the condensation pipe section, so that the phase change working medium in the evaporation pipe section is uneven, and the temperature fluctuation is large.

SUMMERY OF THE UTILITY MODEL

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 to be a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a heat pipe system and refrigeration equipment, which are used for solving the problems of uneven working medium and large temperature fluctuation of an evaporation pipe section.

In some embodiments, the heat pipe system comprises:

the heat pipe assembly comprises an annular heat pipe filled with a phase-change working medium, and the annular heat pipe comprises a condensation pipe section and an evaporation pipe section; the condensing pipe section is communicated with the evaporating pipe section through a shunting device, and the shunting device is used for uniformly shunting the phase change working medium flowing from the condensing pipe section to the evaporating pipe section;

the phase-change energy storage component comprises a shell and a phase-change cold storage material filled in the shell; the shunting device is arranged in the phase change cold storage material, and the phase change working medium can pass through the shunting device to exchange heat with the phase change cold storage material.

Optionally, the flow dividing device includes a liquid dividing cavity, and a cavity wall of the liquid dividing cavity is made of a heat conducting material;

the liquid separation cavity is provided with two liquid separation ports with the same horizontal height, and two ends of the evaporation pipe section are respectively communicated with the two liquid separation ports.

Optionally, the annular heat pipe is a gravity heat pipe;

the horizontal height of the condensation pipe section is greater than the height of the liquid distribution cavity, and the horizontal height of the evaporation pipe section is less than the height of the liquid distribution cavity.

Optionally, the flow dividing device comprises a flow dividing pipe, and a pipe wall of the flow dividing pipe is made of a heat conducting material;

the both ends of liquid distribution pipe have two feed liquor branch pipes and two play liquid branch pipes respectively, the both ends of condensation section communicate respectively in two the feed liquor branch pipe, the both ends of evaporation section communicate respectively in two play liquid branch pipe.

Optionally, the annular heat pipe is a gravity heat pipe;

the horizontal height of the condensation pipe section is greater than the height of the liquid inlet branch pipe, and the horizontal height of the evaporation pipe section is less than the height of the liquid outlet branch pipe.

Optionally, a part of the evaporation tube section connected with the flow dividing device is located in the phase change cold storage material; and/or the part of the condensation pipe section connected with the flow dividing device is positioned in the phase change cold storage material.

Optionally, the phase change cold storage material includes one or more of hydrogel, an alcohol solution, and a salt solution.

Optionally, the cold is transferred to the condenser section by a refrigerator.

In some embodiments, the refrigeration appliance comprises the heat pipe system of any of the embodiments described above.

Optionally, the refrigeration equipment comprises an inner container;

the evaporation pipe section is arranged against the outer surface of the inner container.

The heat pipe system and the refrigeration equipment provided by the embodiment of the disclosure can realize the following technical effects:

gaseous phase change working medium is condensed into liquid after absorbing the cold energy of an external cold source in the condensation pipe section, the liquid phase change working medium flows into the shunting device from the two ends of the condensation pipe section, the phase change working medium in the shunting device transfers the cold energy to the phase change heat storage material, and meanwhile, the part of the cold energy is stored by the phase change cold storage material. After the phase change working media with different temperatures flowing out of the two ends of the condensation pipe section converge on the flow dividing device, the phase change cold storage material can transmit the stored cold quantity to the phase change working media in the flow dividing device, so that the temperature of the converged phase change working media is quickly balanced, and then the converged phase change working media uniformly flow into the two ends of the evaporation pipe section after being divided by the flow dividing device, and the refrigeration effect of the heat pipe system is effectively improved. More, when the external cold source stops supplying cold, the phase change cold storage material can be used as a temporary cold source, cold energy is transferred to the gaseous phase change working medium in the shunting device to enable the gaseous phase change working medium to be in a liquid state, and the liquid phase change working medium flows into the evaporation pipe section uniformly after being shunted by the shunting device, so that the refrigeration function of the heat exchange system can be maintained within a certain time.

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 in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

FIG. 1 is a schematic structural diagram of a heat pipe system provided in an embodiment of the present disclosure;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic diagram of a structure of a liquid-separating chamber provided by the embodiments of the present disclosure;

fig. 4 is a schematic diagram of a structure of a liquid separation pipe provided in the embodiments of the present disclosure.

Reference numerals:

10: a refrigerator; 20: a phase change energy storage component; 21: a housing; 22: a phase change cold storage material; 30: a condensing tube section; 31: an evaporation pipe section; 40: a liquid separation cavity; 41: a liquid separating pipe; 50: an inner container.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. 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 be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and claims of the embodiments of the disclosure and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can 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. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. E.g., a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

In the heat pipe system, two ends of the condensation pipe section 30 are respectively communicated with two ends of the evaporation pipe section 31 to form an annular heat pipe, liquid phase change working medium absorbs heat of the cold equipment in the evaporation pipe section 31 and changes the phase into a gaseous state, gaseous phase change working medium enters the condensation pipe section 30 from two ends of the evaporation pipe section 31, at the moment, the refrigerating machine 10 transfers cold energy to the gaseous phase change working medium through the condensation pipe section 30, so that the gaseous phase change working medium is condensed into the liquid state, the liquid phase change working medium flows back to the evaporation pipe section 31 again from two ends of the condensation pipe section 30 to absorb heat, and the refrigeration is realized in such a circulating way.

Because the heat exchange area of the condensation pipe section 30 is limited, and part of the cold energy of the phase change working medium in the process of circulating in the condensation pipe section 30 is inevitably transferred to the external environment, especially under the condition that the arrangement environments at the two ends of the condensation pipe section 30 have differences, the temperature of the phase change working medium at the two ends of the condensation pipe section 30 is easily caused to have differences, if the phase change working medium is directly led into the evaporation pipe section 31 from the two ends of the condensation pipe section 30, the liquid separation is uneven, and the temperature fluctuation in the evaporation pipe section 31 is large, so that the refrigeration effect of the heat pipe system is influenced.

As shown in connection with fig. 1-4, embodiments of the present disclosure provide a heat pipe system including a heat pipe assembly and a phase change energy storage assembly 20. The heat pipe assembly comprises an annular heat pipe filled with a phase change working medium, and the annular heat pipe comprises a condensation pipe section 30 and an evaporation pipe section 31; the condensing pipe section 30 is communicated with the evaporating pipe section 31 through a shunting device, and the shunting device is used for uniformly shunting the phase change working medium flowing from the condensing pipe section 30 to the evaporating pipe section 31; the phase change energy storage component 20 comprises a shell 21 and a phase change cold storage material 22 filled in the shell 21; the shunting device is arranged in the phase change cold storage material 22, and the phase change working medium can exchange heat with the phase change cold storage material 22 through the shunting device.

By adopting the heat pipe system provided by the embodiment of the disclosure, the gaseous phase change working medium is condensed into liquid after absorbing the cold energy of the external cold source in the condensation pipe section 30, the liquid phase change working medium flows into the flow dividing device from the two ends of the condensation pipe section 30, the phase change working medium in the flow dividing device transfers the cold energy to the phase change heat storage material, and meanwhile, the part of the cold energy is stored by the phase change cold storage material 22. After the phase change working media with different temperatures flowing out of the two ends of the condensing pipe section 30 converge on the flow dividing device, the phase change cold storage material 22 can transfer the stored cold quantity to the phase change working media in the flow dividing device, so that the temperature of the converged phase change working media is quickly balanced, and then the converged phase change working media uniformly flow into the two ends of the evaporating pipe section 31 after being divided by the flow dividing device, thereby effectively improving the refrigeration effect of the heat pipe system. More, when the external cold source stops supplying cold, the phase change cold storage material 22 can be used as a temporary cold source to transfer cold to the gaseous phase change working medium in the flow dividing device to make the gaseous phase change working medium change into liquid, and the liquid phase change working medium flows into the evaporation pipe section 31 uniformly after being divided by the flow dividing device, so that the refrigeration function of the heat exchange system can be maintained within a certain time.

In some embodiments, the phase change cold storage material 22 includes one or more of a hydrogel, an alcohol solution, and a salt solution. The phase change cold storage material 22 is a functional material for storing cold in the phase change energy storage system, and the phase change cold storage material 22 absorbs heat from the environment or releases heat to the environment through the transformation of physical state.

Illustratively, hydrogel is filled in the shell 21 as the phase-change cold storage material 22, a gaseous phase-change working medium is in heat exchange phase with an external cold source in the condensation pipe section 30 and is changed into a liquid state, after the liquid phase-change working medium flows into the flow dividing device, the phase-change working medium transmits cold to the hydrogel through the flow dividing device, and after the hydrogel absorbs the cold, the hydrogel gradually solidifies and maintains a low-temperature state. After the phase-change working media with different temperatures flowing out of the two ends of the condensation pipe section 30 converge on the flow dividing device, the hydrogel transfers cold energy to the converged phase-change working media, so that the temperature of the converged phase-change working media is quickly balanced, and the hydrogel absorbs heat and is gradually liquefied in the process.

In another exemplary embodiment, the shell 21 is filled with a mixed solution including an alcohol solution and a salt solution as the phase-change cold storage material 22, the gaseous phase-change working medium is changed into a liquid state with an external cold source in a heat exchange manner in the condensation pipe section 30, after the liquid phase-change working medium flows into the flow dividing device, the phase-change working medium transfers cold to the mixed solution through the flow dividing device, and the mixed solution gradually solidifies after absorbing the cold and maintains a low-temperature state. When the external cold source stops supplying cold for a short time due to faults or power failure and the like, the mixed solution can be used as a temporary cold source, cold energy is transferred to the gaseous phase-change working medium in the shunting device to liquefy the gaseous phase-change working medium, and the liquid phase-change working medium is uniformly shunted by the shunting device and then enters the evaporation pipe section 31, so that the refrigeration function is maintained.

In some embodiments, the portion of the evaporation tube section 31 connected to the current dividing device is located in the phase change cold storage material 22, or the portion of the condensation tube section 30 connected to the current dividing device is located in the phase change cold storage material 22, or the portions of the evaporation tube section 31 and the condensation tube section 30 connected to the current dividing device are both located in the phase change cold storage material 22.

Illustratively, the portion of the condensing tube section 30 connected to the shunt device is located in the phase change cold storage material 22, and before the liquid phase change working medium in the condensing tube section 30 flows into the shunt device, the liquid phase change working medium can transfer cold to the phase change cold storage material 22 through the portion of the condensing tube section 30 located in the phase change cold storage material 22.

In another example, the portions of the evaporator tube section 31 and the condenser tube section 30 connected to the flow dividing device are located in the phase change cold storage material 22. In the process that the liquid phase-change working medium in the condensation pipe section 30 flows into the evaporation pipe section 31, the liquid phase-change working medium can respectively transmit cold energy to the phase-change cold storage material 22 through the part of the condensation pipe section 30, which is positioned in the phase-change cold storage material 22, the shunt device and the part of the evaporation pipe section 31, which is positioned in the phase-change cold storage material 22, so that the cold energy can be transmitted to the phase-change cold storage material 22 more quickly.

In some embodiments, as shown in fig. 3, the shunt device comprises a fluid distribution chamber 40, a wall of the fluid distribution chamber 40 is made of a thermally conductive material; the liquid distribution cavity 40 has two liquid distribution ports with the same horizontal height, and two ends of the evaporation pipe section 31 are respectively communicated with the two liquid distribution ports.

Therefore, gaseous phase change working medium and an external cold source generate heat exchange phase and change into liquid state in the condensation pipe section 30, then the liquid phase change working medium flows into the branch cavity, as the cavity wall of the liquid branch cavity 40 is made of heat conduction material, the phase change working medium can exchange heat with the phase change cold storage material 22 through the cavity wall, the phase change working medium can transfer cold energy to the phase change cold storage material 22, and the phase change cold storage material 22 can store the part of cold energy; after the phase-change working media with different temperatures flowing out of the two ends of the condensing tube section 30 converge on the flow dividing device, the phase-change cold storage material 22 can transfer the stored cold to the converged phase-change working media, so that the temperature of the phase-change working media is quickly balanced. Moreover, under the shunting action of the liquid distributing port of the liquid distributing cavity 40, the phase-change working medium with balanced temperature uniformly flows to the evaporation pipe section 31, so that the refrigeration effect of the heat pipe system can be effectively improved.

Optionally, the heat conductive material for manufacturing the cavity wall of the liquid separation cavity 40 includes heat conductive metals such as stainless steel, copper, and aluminum.

Further, optionally, the heat pipe is made of heat conductive metal such as stainless steel, copper, aluminum, and the like. The material of the heat pipe is the same as or different from that of the liquid separating cavity 40.

In some embodiments, the loop heat pipe is a gravity heat pipe; the level of the condensation pipe section 30 is higher than that of the liquid distribution chamber 40, and the level of the evaporation pipe section 31 is lower than that of the liquid distribution chamber 40. The annular heat pipe is a gravity heat pipe, the liquid phase change working medium in the evaporation pipe section 31 absorbs heat and evaporates into gas, and under the action of pressure difference, the gas rises along the evaporation pipe section 31 to enter the liquid distribution chamber 40 and then enters the condensation pipe section 30 from the liquid distribution chamber 40. Gaseous phase change working medium is condensed into liquid in the condensation pipe section 30, and under the action of gravity, the liquid phase change working medium flows into the liquid distribution chamber 40 along the condensation pipe section 30 and then uniformly flows back to the evaporation pipe section 31 from two ends of the evaporation pipe section 31 through two liquid distribution ports with the same horizontal height in the liquid distribution chamber 40.

Alternatively, the liquid separation chamber 40 is configured as a rectangular chamber, and the bottom surface of the liquid separation chamber 40 is horizontally disposed in the housing 21.

Further, optionally, two liquid inlets are disposed at the top of the liquid separating cavity 40, and two ends of the condensation pipe section 30 are respectively communicated with the liquid separating cavity 40 through the two liquid inlets. Two liquid distributing ports with the same horizontal height are arranged at the lower part of the side surface of the liquid distributing cavity 40, and when liquid phase change working media in the liquid distributing cavity 40 are accumulated to the height of submerging the liquid distributing ports, the liquid phase change working media uniformly enter the two ends of the evaporation pipe section 31 from the two liquid distributing ports.

Optionally, an emergency discharge port is arranged at the upper part of the side surface of the liquid distribution cavity 40, one end of the outer discharge pipeline is communicated with the liquid distribution cavity 40 through the emergency discharge port, and the other end of the outer discharge pipeline is communicated with an external temporary storage tank. When the liquid distribution cavity 40 discharges liquid to the evaporation pipe section 31 smoothly and liquid phase-change working medium is accumulated in the liquid distribution cavity 40 to be too much liquid level to submerge the emergency discharge port, the phase-change working medium can be discharged to the temporary storage tank from the emergency discharge port through the discharge pipeline.

Optionally, the liquid separation chamber 40 is provided with a liquid level monitoring device, such as a liquid level sensor, and the liquid level monitoring device is arranged in the liquid separation chamber 40 and is used for detecting the liquid level of the phase change working medium in the liquid separation chamber 40.

In some embodiments, the shape of the housing 21 includes a cuboid, cylinder, hexahedron, or other regular polyhedron.

Optionally, as shown in fig. 1 and fig. 2, two first pipe holes are provided at the bottom of the casing 21, the hole diameter of the first pipe hole is adapted to the diameter of the evaporation pipe section 31, and two ends of the evaporation pipe section 31 respectively penetrate through the two first pipe holes and are communicated with the liquid distribution chamber 40 provided in the casing 21.

Further, optionally, two second pipe holes are formed in the top of the shell 21, the hole diameter of each second pipe hole is matched with the diameter of the condensation pipe section 30, and two ends of the condensation pipe section 30 penetrate through the two second pipe holes respectively and are communicated with the liquid distribution cavity 40 arranged in the shell 21.

Further, optionally, sealing sleeves are arranged in the first tube hole and the second tube hole, when the evaporation tube section 31 passes through the first tube hole, the outer tube wall of the evaporation tube section 31 is attached to the sealing sleeves, and when the condensation tube section 30 passes through the second tube hole, the outer tube wall of the condensation tube section 30 is attached to the sealing sleeves. Thus, the phase change cold storage material 22 in the case 21 can be prevented from leaking from the first tube hole or the second tube hole by the sealing sleeve.

Optionally, a liquid filling port is formed in the surface of the housing 21, and the phase change regenerator material 22 enters between the housing 21 and the flow dividing device through the liquid filling port.

Optionally, the material of the housing 21 includes any one of metals such as stainless steel, copper, and aluminum, and plastics such as PVC, PP, and ABS.

In some embodiments, as shown in fig. 4, the flow dividing device includes a liquid dividing tube 41, and the tube wall of the liquid dividing tube 41 is made of heat conductive material; two ends of the liquid distributing pipe 41 are respectively provided with two liquid inlet branch pipes and two liquid outlet branch pipes, two ends of the condensing pipe section 30 are respectively communicated with the two liquid inlet branch pipes, and two ends of the evaporating pipe section 31 are respectively communicated with the two liquid outlet branch pipes. The liquid distribution pipe 41 is a liquid distributor, and can uniformly distribute the liquid entering from the liquid inlet branch pipe and discharge the liquid from the plurality of liquid outlet branch pipes. Thus, the liquid phase change working medium in the condensing tube section 30 enters the liquid dividing tube 41 from the two liquid inlet branch tubes, and after being divided by the liquid dividing tube 41, the liquid phase change working medium uniformly flows to the evaporating tube section 31 from the two liquid outlet tube sections.

Optionally, the heat conductive material for manufacturing the tube wall of the liquid distribution tube 41 includes heat conductive metals such as stainless steel, copper, aluminum, and the like.

Optionally, the loop heat pipe is a gravity heat pipe; the horizontal height of the condensation pipe section 30 is larger than that of the liquid inlet branch pipe, and the horizontal height of the evaporation pipe section 31 is smaller than that of the liquid outlet branch pipe. The loop heat pipe is a gravity heat pipe, the liquid phase change working medium in the evaporation pipe section 31 absorbs heat and evaporates into gas, and the gas rises to enter the condensation pipe section 30 along the evaporation pipe section 31, the liquid outlet branch pipe, the liquid distribution pipe 41 and the liquid inlet branch pipe in sequence under the action of pressure difference. Gaseous phase-change working medium is condensed into liquid in the condensation pipe section 30, and under the action of gravity, the liquid phase-change working medium enters the liquid distribution pipe 41 and uniformly flows back to the evaporation pipe section 31 from two ends of the evaporation pipe section 31 under the action of the flow distribution of the liquid distribution pipe 41.

Further, optionally, the liquid separating pipe 41 is perpendicular to the horizontal plane, the upper end of the liquid separating pipe 41 is a liquid inlet branch pipe, and the lower end of the liquid inlet pipe is a liquid outlet branch pipe. Therefore, the horizontal height of the condensation pipe section 30 is larger than that of the liquid inlet branch pipe, the liquid distribution pipe 41 is vertically arranged, the horizontal height of the evaporation pipe section 31 is lower than that of the liquid outlet branch pipe, and the liquid phase change working medium can quickly flow back to the evaporation pipe section 31 from the condensation pipe section 30 under the action of gravity by adopting the arrangement mode.

In some embodiments, refrigeration is transferred to condenser tube section 30 by refrigerator 10. The refrigerator 10 uses a stirling refrigerator as an external cold source, and the stirling refrigerator has the advantages of compact mechanism, wide working temperature range, quick start, high efficiency and the like. The stirling cooler transfers cold through the cold head to the condenser section 30.

The embodiment of the disclosure provides a refrigeration device, which comprises the heat pipe system in any embodiment. A refrigeration appliance such as a refrigerator or the like.

Optionally, the refrigeration device includes an inner container 50, the interior of the inner container 50 is used for storing food, and the evaporator tube 31 is disposed against the outer surface of the inner container 50. When the low-temperature liquid working medium circulates in the evaporation pipe section 31, the liquid working medium exchanges heat with food placed in the inner cavity, the cold energy is transmitted to the food, meanwhile, the heat absorption phase is changed into a gaseous phase change working medium, the phase change working medium rises to the condensation pipe section 30 through the flow dividing device, and the gaseous phase change working medium is condensed into liquid after being exchanged heat with the cold head and flows back to the evaporation pipe section 31 again to be refrigerated.

Further, the evaporation tube section 31 is optionally fixed to the outer surface of the inner container 50 by a tin foil tape or an aluminum foil tape.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify 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 (9)

1. A heat pipe system, comprising:

the heat pipe assembly comprises an annular heat pipe filled with a phase-change working medium, and the annular heat pipe comprises a condensation pipe section and an evaporation pipe section; the condensing pipe section is communicated with the evaporating pipe section through a shunting device, and the shunting device is used for uniformly shunting the phase change working medium flowing from the condensing pipe section to the evaporating pipe section;

the phase-change energy storage component comprises a shell and a phase-change cold storage material filled in the shell; the shunting device is arranged in the phase change cold storage material, and the phase change working medium can pass through the shunting device to exchange heat with the phase change cold storage material.

2. The heat pipe system of claim 1, wherein the flow dividing device comprises a liquid dividing chamber, and a chamber wall of the liquid dividing chamber is made of a heat conducting material;

the liquid distribution cavity is provided with two liquid distribution ports with the same horizontal height, and two ends of the evaporation pipe section are respectively communicated with the two liquid distribution ports.

3. A heat pipe system according to claim 2, wherein the loop heat pipe is a gravity heat pipe;

the horizontal height of the condensation pipe section is larger than that of the liquid distribution cavity, and the horizontal height of the evaporation pipe section is smaller than that of the liquid distribution cavity.

4. A heat pipe system according to claim 1, wherein the flow dividing means comprises a liquid dividing pipe, a pipe wall of the liquid dividing pipe is made of a heat conductive material;

the both ends of liquid distribution pipe have two feed liquor branch pipes and two play liquid branch pipes respectively, the both ends of condensation section communicate respectively in two the feed liquor branch pipe, the both ends of evaporation section communicate respectively in two play liquid branch pipe.

5. A heat pipe system according to claim 4, wherein the loop heat pipe is a gravity heat pipe; the horizontal height of the condensation pipe section is greater than the height of the liquid inlet branch pipe, and the horizontal height of the evaporation pipe section is less than the height of the liquid outlet branch pipe.

6. A heat pipe system according to any one of claims 1 to 5, wherein the part of the evaporator pipe section connected to the flow dividing device is located in the phase change cold storage material; and/or the part of the condensation pipe section connected with the flow dividing device is positioned in the phase change cold storage material.

7. A heat pipe system according to any of claims 1 to 5 wherein refrigeration is delivered to the condenser section by a refrigeration machine.

8. Refrigeration device, characterized in that it comprises a heat pipe system according to any of claims 1 to 7.

9. The refrigeration appliance according to claim 8, comprising an inner container; the evaporation pipe section is arranged against the outer surface of the inner container.

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